Marquise|Lab Grown|IGI

2.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG658477011

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG658477011

Diamond specifications and retailer prices

From $978 USD
As of October 27, 2026
Save $4,302 USD (81%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: $6,199 USD at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

About this 2.51ct lab-grown marquise diamond

This 2.51ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG658477011 or 658477011. Listed at 34 retailers as of October 27, 2026, with a 440% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658477011
Dimensions14.75 × 7.08 × 4.23 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Top View
14.75 mm7.08 mm2.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658477011
Side View
Table 64.0%Crown 34.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $6,199 USD|Low: $1,063 USD|High: $8,190 USD|Avg: $3,443 USD|+7.0%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 4$1,095 USD
Retailer 9$1,107 USD
Retailer 16$1,134 USD
Retailer 14$1,638 USD
Retailer 11$1,765 USD
Retailer 17$2,126 USD
Retailer 15$2,251 USD
Retailer 12$2,534 USD
Retailer 18$2,605 USD
Retailer 8$3,046 USD
Retailer 6$3,155 USD
Retailer 5$3,548 USD
Retailer 7$3,838 USD
Retailer 13$3,866 USD
Retailer 3$3,987 USD
Retailer 10$4,290 USD
Retailer 2$5,280 USD
Novita Diamonds$6,199 USD

38 data points across 18 retailers

34 retailers$978 USD to $5,280 USD

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Cheapest Retailer
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$978 USD
Retailer 2
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$1,063 USD
View
Price last confirmed 28 days ago
A
Retailer 3
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$1,064 USD
View
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Retailer 4
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$1,095 USD
View
Final sale: no returns
Retailer 5
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$1,107 USD
View
Price last confirmed 22 days ago
Retailer 6
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$1,107 USD
View
Price last confirmed 11 days ago
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Retailer 7
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$1,134 USD
View
Retailer 8
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$1,204 USD
View
Price last confirmed 15 days ago
Retailer 9
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$1,266 USD
View
Price last confirmed 30 days ago
Retailer 10
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$1,284 USD
View
Price last confirmed 27 days ago
Retailer 11
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$1,284 USD
View
Price last confirmed 25 days ago
Retailer 12
-
$1,284 USD
View
Price last confirmed 12 days ago
Retailer 13
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$1,284 USD
View
Price last confirmed 15 days ago
Retailer 14
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$1,345 USD
View
Price last confirmed 31 days ago
Retailer 15
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$1,415 USD
View
Price last confirmed 32 days ago
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Retailer 16
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$1,638 USD
View
A
Retailer 17
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$1,765 USD
£1,390 GBP
View
A
Retailer 18
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$2,126 USD
View
A
Retailer 19
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$2,251 USD
View
Retailer 20
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$2,407 USD
View
Price last confirmed 30 days ago
Retailer 21
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$2,407 USD
View
Price last confirmed 26 days ago
A
Retailer 22
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$2,534 USD
€2,413 EUR
View
A
Retailer 23
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$2,605 USD
View
Retailer 24
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$3,046 USD
A$4,686 AUD
View
Price last confirmed 9 days ago
A
Retailer 25
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$3,155 USD
£2,484 GBP
View
A
Retailer 26
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$3,404 USD
View
A
Retailer 27
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$3,548 USD
View
A
Retailer 28
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$3,838 USD
SGD 5,187 SGD
View
A
Retailer 29
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$3,866 USD
£3,044 GBP
View
B+
Retailer 30
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$3,987 USD
View
B+
Retailer 31
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$4,089 USD
£3,220 GBP
View
Retailer 32
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$4,290 USD
View
Price last confirmed 26 days ago
B+
Retailer 33
-
$5,280 USD
View
Most Expensive
Novita Diamonds
cert_658477011 · Oct 5
$6,199 USD
A$9,537 AUD
View
Price last confirmed 25 days ago
33 more retailers have this diamond
Prices start from $978 USDSave up to $4,302 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Marquise
$978 USD