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Round|Lab Grown|IGI

5.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG626461344

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626461344

Diamond specifications and retailer prices

From $3,850 USD
As of October 29, 2026
Save $12,168 USD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $16,018 USD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG626461344 or 626461344. Listed at 22 retailers as of October 29, 2026, with prices from $3,850 to $16,018, a $12,168 spread on the same certified stone. Michael Trio lists it at $16,018. 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

5.51
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626461344
Dimensions11.34 × 11.41 × 7.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
11.34 mm11.41 mm5.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626461344
Side View
Table 55.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
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: $16,018 USD|Low: $3,850 USD|High: $16,018 USD|Avg: $7,769 USD
Michael Trio
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Retailer 22
October 31, 2026
Retailer 20$3,850 USD
Retailer 19$4,035 USD
Retailer 11$4,315 USD
Retailer 4$4,466 USD
Retailer 3$4,701 USD
Retailer 6$5,049 USD
Retailer 12$5,530 USD
Retailer 21$5,581 USD
Retailer 13$5,828 USD
Retailer 5$5,923 USD
Retailer 18$5,925 USD
Retailer 7$6,800 USD
Retailer 22$7,085 USD
Retailer 2$7,226 USD
Retailer 16$9,073 USD
Retailer 8$9,250 USD
Retailer 17$9,618 USD
Retailer 9$9,860 USD
Retailer 10$11,266 USD
Retailer 15$11,880 USD
Retailer 14$15,811 USD
Michael Trio$16,018 USD

33 data points across 22 retailers

22 retailers$3,850 USD to $16,018 USD

A
Cheapest Retailer
-
$3,850 USD
A
Retailer 2
-
$4,035 USD
View
A
Retailer 3
-
$4,315 USD
View
A
Retailer 4
-
$4,466 USD
View
Retailer 5
-
$4,701 USD
£3,701 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$5,049 USD
View
Final sale: no returns
A
Retailer 7
-
$5,530 USD
HK$43,200 HKD
View
A
Retailer 8
-
$5,581 USD
View
A
Retailer 9
-
$5,828 USD
£4,589 GBP
View
A
Retailer 10
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$5,923 USD
View
A
Retailer 11
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$5,925 USD
View
A
Retailer 12
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$6,800 USD
View
Retailer 13
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$7,085 USD
View
Price last confirmed 10 days ago
A
Retailer 14
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$7,226 USD
€6,882 EUR
View
B+
Retailer 15
-
$9,073 USD
ZAR 146,576 ZAR
View
B+
Retailer 16
-
$9,250 USD
View
B+
Retailer 17
-
$9,618 USD
£7,573 GBP
View
B+
Retailer 18
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$9,860 USD
View
B+
Retailer 19
-
$11,266 USD
View
B+
Retailer 20
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$11,880 USD
View
B
Retailer 21
-
$15,811 USD
View
Most Expensive
B
Michael Trio
2207492360 · Oct 31
$16,018 USD
SGD 21,646 SGD
View
21 more retailers have this diamond
Prices start from $3,850 USDSave up to $12,168 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
5.51ct Round
$3,850 USD