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Oval|Lab Grown|IGI

6.65ct G VS1 Oval Lab Grown Diamond

ID • G/VS1 • IGI LG598388125

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598388125

Diamond specifications and retailer prices

From $911 USD
As of November 1, 2026
Save $4,799 USD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,710 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.65ct lab-grown oval diamond

This 6.65ct lab-grown oval 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 LG598388125 or 598388125. Listed at 20 retailers as of October 31, 2026, with prices from $911 to $5,710, a $4,799 spread on the same certified stone. Brilliant Earth lists it at $5,710. 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

6.65
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598388125
Dimensions14.94 × 10.69 × 6.66 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Top View
14.94 mm10.69 mm6.65 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598388125
Side View
Table 60.0%Crown 35.1°Girdle: THN-STKPavilion 40.9°Culet: NoneDepth 62.3%

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: Nov 1
Current: $5,710 USD|Low: $884 USD|High: $5,940 USD|Avg: $2,248 USD|-3.1%
Brilliant Earth
Retailer 2
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Retailer 22
November 2, 2026
Retailer 6$911 USD
Retailer 20$991 USD
Retailer 10$1,021 USD
Retailer 4$1,057 USD
Retailer 22$1,057 USD
Retailer 3$1,138 USD
Retailer 17$1,230 USD
Retailer 7$1,549 USD
Retailer 2$1,614 USD
Retailer 11$1,695 USD
Retailer 16$1,729 USD
Retailer 18$1,958 USD
Retailer 19$2,045 USD
Retailer 21$2,352 USD
Retailer 8$2,691 USD
Retailer 9$2,926 USD
Retailer 5$2,972 USD
Retailer 12$3,302 USD
Retailer 14$3,307 USD
Retailer 13$3,585 USD
Retailer 15$3,674 USD
Brilliant Earth$5,710 USD

36 data points across 22 retailers

20 retailers$911 USD to $5,710 USD

A
Cheapest Retailer
-
$911 USD
A
Retailer 2
-
$991 USD
View
A
Retailer 3
-
$1,057 USD
View
Retailer 4
-
$1,057 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,230 USD
View
A
Retailer 6
-
$1,549 USD
View
A
Retailer 7
-
$1,614 USD
£1,271 GBP
View
B+
Retailer 8
-
$1,695 USD
View
A
Retailer 9
-
$1,729 USD
€1,647 EUR
View
B+
Retailer 10
-
$1,958 USD
A$3,013 AUD
View
A
Retailer 11
-
$2,045 USD
ZAR 33,043 ZAR
View
B+
Retailer 12
-
$2,352 USD
View
B+
Retailer 13
-
$2,691 USD
View
B+
Retailer 14
-
$2,926 USD
£2,304 GBP
View
B+
Retailer 15
-
$2,972 USD
View
Retailer 16
-
$3,302 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$3,307 USD
View
B+
Retailer 18
-
$3,585 USD
£2,823 GBP
View
B
Retailer 19
-
$3,674 USD
View
Most Expensive
B
Brilliant Earth
8138297A · Oct 31
$5,710 USD
View
19 more retailers have this diamond
Prices start from $911 USDSave up to $4,799 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
6.65ct Oval
$911 USD