Oval|Lab Grown|IGI

6.58ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG817637657

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG817637657

Diamond specifications and retailer prices

From $1,702 USD
HK$13,300 HKD
As of November 1, 2026
18 retailers carry this diamond
Most expensive: $5,650 USD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 6.58ct lab-grown oval diamond

This 6.58ct 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 LG817637657 or 817637657. Listed at 18 retailers as of November 1, 2026. 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

6.58
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817637657
Dimensions16.35 × 10.22 × 6.21 mm
L/W Ratio1.60
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.35 mm10.22 mm6.58 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817637657
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $5,650 USD|Low: $971 USD|High: $9,860 USD|Avg: $3,163 USD|-42.7%
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
October 21, 2026
Retailer 14$971 USD
Retailer 16$998 USD
Retailer 9$1,245 USD
Retailer 2$1,617 USD
Retailer 6$1,662 USD
Retailer 7$1,702 USD
Retailer 10$1,980 USD
Retailer 12$2,302 USD
Retailer 15$2,635 USD
Retailer 8$2,731 USD
Retailer 4$2,865 USD
Retailer 3$3,238 USD
Retailer 13$3,244 USD
Retailer 5$3,594 USD
Retailer 11$3,900 USD
Brilliant Earth$5,650 USD

32 data points across 16 retailers

18 retailers

Retailer 1
-
$892 USD
Price last confirmed 14 days ago
Retailer 2
-
$971 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$1,035 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$1,035 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$1,245 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$1,617 USD
£1,273 GBP
View
Price last confirmed 12 days ago
Retailer 7
-
$1,662 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$1,702 USD
HK$13,300 HKD
View
Retailer 9
-
$1,980 USD
ZAR 31,990 ZAR
View
Price last confirmed 13 days ago
Retailer 10
-
$2,302 USD
View
Price last confirmed 11 days ago
Retailer 11
-
$2,635 USD
View
Price last confirmed 12 days ago
Retailer 12
-
$2,865 USD
£2,256 GBP
View
Price last confirmed 14 days ago
Retailer 13
-
$2,909 USD
View
Price last confirmed 15 days ago
Retailer 14
-
$3,238 USD
View
Price last confirmed 13 days ago
Retailer 15
-
$3,244 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$3,594 USD
View
Price last confirmed 13 days ago
Retailer 17
-
$3,900 USD
£3,071 GBP
View
Price last confirmed 14 days ago
Most Expensive
Brilliant Earth
21159758A · Oct 21
$5,650 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from $1,702 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
6.58ct Oval
$1,702 USD