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Round|Lab Grown|IGI

5.51ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG756512200

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756512200

Diamond specifications and retailer prices

From $718 USD
As of November 1, 2026
Save $5,472 USD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,190 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG756512200 or 756512200. Listed at 23 retailers as of October 31, 2026, with prices from $718 to $6,190, a $5,472 spread on the same certified stone. Brilliant Earth lists it at $6,190. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756512200
Dimensions11.48 × 11.56 × 6.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.48 mm11.56 mm5.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756512200
Side View
Table 62.0%Crown 32.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 57.9%

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: Nov 1
Current: $6,190 USD|Low: $690 USD|High: $7,050 USD|Avg: $1,871 USD|-3.0%
Brilliant Earth
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
November 1, 2026
Retailer 3$718 USD
Retailer 6$781 USD
Retailer 8$804 USD
Retailer 4$833 USD
Retailer 13$1,010 USD
Retailer 16$1,192 USD
Retailer 14$1,242 USD
Retailer 9$1,321 USD
Retailer 11$1,463 USD
Retailer 10$1,689 USD
Retailer 12$1,693 USD
Retailer 15$2,052 USD
Retailer 7$2,343 USD
Retailer 5$2,842 USD
Retailer 2$3,272 USD
Brilliant Earth$6,190 USD

44 data points across 16 retailers

23 retailers$718 USD to $6,190 USD

A
Cheapest Retailer
-
$718 USD
A
Retailer 2
-
$781 USD
View
A
Retailer 3
-
$804 USD
View
Final sale: no returns
Retailer 4
-
$833 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$833 USD
View
A
Retailer 6
-
$1,010 USD
View
B+
Retailer 7
-
$1,192 USD
View
A
Retailer 8
-
$1,242 USD
HK$9,700 HKD
View
A
Retailer 9
-
$1,321 USD
£1,040 GBP
View
A
Retailer 10
-
$1,463 USD
€1,393 EUR
View
B+
Retailer 11
-
$1,689 USD
A$2,598 AUD
View
B+
Retailer 12
-
$1,693 USD
ZAR 27,347 ZAR
View
B+
Retailer 13
-
$1,759 USD
View
B+
Retailer 14
-
$2,052 USD
View
B+
Retailer 15
-
$2,116 USD
View
B+
Retailer 16
-
$2,343 USD
View
B
Retailer 17
-
$2,715 USD
View
B
Retailer 18
-
$2,842 USD
View
B
Retailer 19
-
$2,872 USD
View
B
Retailer 20
-
$3,272 USD
£2,576 GBP
View
B
Retailer 21
-
$3,360 USD
View
B
Retailer 22
-
$4,024 USD
CA$5,589 CAD
View
Most Expensive
B
Brilliant Earth
17139157A · Oct 31
$6,190 USD
View
22 more retailers have this diamond
Prices start from $718 USDSave up to $5,472 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
$718 USD