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Round|Lab Grown|IGI

1.51ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG761554233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761554233

Diamond specifications and retailer prices

From $381 USD
As of October 29, 2026
Save $2,464 USD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,845 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG761554233 or 761554233. Listed at 24 retailers as of October 27, 2026, with prices from $381 to $2,845, a $2,464 spread on the same certified stone. Queensmith lists it at $2,845. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761554233
Dimensions7.37 × 7.39 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.37 mm7.39 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761554233
Side View
Table 59.0%Crown 35°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.5%

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 29
Current: $853 USD|Low: $366 USD|High: $2,165 USD|Avg: $933 USD|+5.2%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 30, 2026
Retailer 18$381 USD
Retailer 6$427 USD
Retailer 8$427 USD
Retailer 2$473 USD
Retailer 9$473 USD
Retailer 15$620 USD
Retailer 10$635 USD
Retailer 5$717 USD
Retailer 14$813 USD
Retailer 13$830 USD
Retailer 1$853 USD
Retailer 11$1,097 USD
Retailer 17$1,133 USD
Retailer 4$1,506 USD
Retailer 7$1,520 USD
Retailer 3$1,770 USD
Retailer 12$1,857 USD
Retailer 16$2,155 USD

42 data points across 18 retailers

24 retailers$381 USD to $2,845 USD

A
Cheapest Retailer
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$381 USD
A
Retailer 2
-
$427 USD
View
Final sale: no returns
A
Retailer 3
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$427 USD
View
A
Retailer 4
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$473 USD
View
A
Retailer 5
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$473 USD
View
A
Retailer 6
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$525 USD
HK$4,100 HKD
View
A
Retailer 7
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$620 USD
View
A
Retailer 8
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$635 USD
View
A
Retailer 9
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$717 USD
View
A
Retailer 10
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$813 USD
ZAR 13,126 ZAR
View
A
Retailer 11
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$830 USD
€790 EUR
View
A
Retailer 12
-
$853 USD
£672 GBP
View
A
Retailer 13
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$901 USD
View
B+
Retailer 14
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$1,097 USD
A$1,688 AUD
View
B+
Retailer 15
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$1,133 USD
View
B+
Retailer 16
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$1,506 USD
SGD 2,035 SGD
View
B+
Retailer 17
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$1,520 USD
View
B+
Retailer 18
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$1,521 USD
View
B+
Retailer 19
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$1,558 USD
View
B
Retailer 20
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$1,770 USD
View
B
Retailer 21
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$1,772 USD
View
B+
Retailer 22
-
$1,857 USD
£1,462 GBP
View
Retailer 23
-
$2,155 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Queensmith
LG761554233 · Oct 27
$2,845 USD
£2,240 GBP
View
23 more retailers have this diamond
Prices start from $381 USDSave up to $2,464 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
1.51ct Round
$381 USD