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Cushion|Lab Grown|IGI

6.58ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG710502173

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG710502173

Diamond specifications and retailer prices

From $1,981 USD
As of November 1, 2026
Save $10,489 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,470 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.58ct lab-grown cushion diamond

This 6.58ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG710502173 or 710502173. Listed at 18 retailers as of October 29, 2026, with prices from $1,981 to $12,470, a $10,489 spread on the same certified stone. Brilliant Earth lists it at $12,470. 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
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710502173
Dimensions11.98 × 9.56 × 6.51 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm9.56 mm6.58 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710502173
Side View
Table 64.0%Crown 40.5°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $12,470 USD|Low: $1,592 USD|High: $12,860 USD|Avg: $3,712 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
October 30, 2026
Retailer 4$1,592 USD
Retailer 11$1,649 USD
Retailer 10$1,820 USD
Retailer 2$1,981 USD
Retailer 13$2,319 USD
Retailer 6$2,563 USD
Retailer 9$3,379 USD
Retailer 8$3,490 USD
Retailer 5$4,389 USD
Retailer 3$4,444 USD
Retailer 12$5,184 USD
Retailer 7$5,206 USD
Brilliant Earth$12,470 USD

40 data points across 13 retailers

18 retailers$1,981 USD to $12,470 USD

Retailer 1
-
$1,649 USD
Price last confirmed 20 days ago
Retailer 2
-
$1,820 USD
View
Price last confirmed 5 days ago
A
Retailer 3
-
$1,981 USD
View
A
Retailer 4
-
$2,084 USD
View
A
Retailer 5
-
$2,319 USD
View
A
Retailer 6
-
$2,355 USD
View
A
Retailer 7
-
$2,563 USD
£2,018 GBP
View
Retailer 8
-
$3,379 USD
A$5,198 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
$3,490 USD
ZAR 56,378 ZAR
View
Price last confirmed 8 days ago
B
Retailer 10
-
$4,389 USD
£3,456 GBP
View
B
Retailer 11
-
$4,444 USD
View
B
Retailer 12
-
$4,802 USD
View
Retailer 13
-
$5,184 USD
A$7,975 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$5,206 USD
£4,099 GBP
View
B
Retailer 15
-
$6,422 USD
View
B
Retailer 16
-
$9,780 USD
View
B
Retailer 17
-
$10,380 USD
View
Most Expensive
B
Brilliant Earth
18873951A · Oct 29
$12,470 USD
View
17 more retailers have this diamond
Prices start from $1,981 USDSave up to $10,489 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 Cushion
$1,981 USD