Radiant|Lab Grown|IGI

6.61ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG592319644

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG592319644

Diamond specifications and retailer prices

From $936 USD
As of October 31, 2026
Save $4,794 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,730 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.61ct lab-grown radiant diamond

This 6.61ct lab-grown radiant 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 LG592319644 or 592319644. Listed at 18 retailers as of October 31, 2026, with prices from $936 to $5,730, a $4,794 spread on the same certified stone. Brilliant Earth lists it at $5,730. 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

6.61
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592319644
Dimensions13.38 × 9.15 × 6.26 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.38 mm9.15 mm6.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592319644
Side View
Table 65.0%Crown 45.8°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,730 USD|Low: $924 USD|High: $5,730 USD|Avg: $2,286 USD
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
Retailer 17
October 31, 2026
Retailer 4$936 USD
Retailer 9$958 USD
Retailer 13$1,145 USD
Retailer 10$1,478 USD
Retailer 17$1,481 USD
Retailer 6$1,562 USD
Retailer 2$1,596 USD
Retailer 11$1,797 USD
Retailer 12$1,877 USD
Retailer 15$2,230 USD
Retailer 16$2,637 USD
Retailer 3$3,035 USD
Retailer 7$3,063 USD
Retailer 5$3,360 USD
Retailer 8$3,442 USD
Retailer 14$3,655 USD
Brilliant Earth$5,730 USD

39 data points across 17 retailers

18 retailers$936 USD to $5,730 USD

Retailer 1
-
$899 USD
Price last confirmed 34 days ago
A
Retailer 2
-
$936 USD
View
Final sale: no returns
Retailer 3
-
$945 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,145 USD
View
A
Retailer 5
-
$1,478 USD
£1,164 GBP
View
A
Retailer 6
-
$1,481 USD
View
B+
Retailer 7
-
$1,562 USD
View
A
Retailer 8
-
$1,596 USD
€1,520 EUR
View
A
Retailer 9
-
$1,797 USD
A$2,765 AUD
View
A
Retailer 10
-
$1,877 USD
ZAR 30,318 ZAR
View
A
Retailer 11
-
$2,230 USD
View
B+
Retailer 12
-
$2,637 USD
View
B+
Retailer 13
-
$3,035 USD
View
Retailer 14
-
$3,063 USD
£2,412 GBP
View
Price last confirmed 20 days ago
B+
Retailer 15
-
$3,360 USD
View
Retailer 16
-
$3,442 USD
View
Price last confirmed 20 days ago
B+
Retailer 17
-
$3,655 USD
£2,878 GBP
View
Most Expensive
B
Brilliant Earth
7810756A · Oct 31
$5,730 USD
View
17 more retailers have this diamond
Prices start from $936 USDSave up to $4,794 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
6.61ct Radiant
$936 USD