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Round|Lab Grown|IGI

6.61ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG588372643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588372643

Diamond specifications and retailer prices

From $1,260 USD
As of October 31, 2026
Save $5,230 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,490 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.61ct lab-grown round diamond

This 6.61ct 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 LG588372643 or 588372643. Listed at 18 retailers as of October 29, 2026, with prices from $1,260 to $6,490, a $5,230 spread on the same certified stone. Brilliant Earth lists it at $6,490. 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 angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588372643
Dimensions12.05 × 11.99 × 7.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.05 mm11.99 mm6.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588372643
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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: Oct 31
Current: $6,490 USD|Low: $1,047 USD|High: $6,490 USD|Avg: $2,477 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
October 31, 2026
Retailer 3$1,047 USD
Retailer 8$1,109 USD
Retailer 10$1,260 USD
Retailer 15$1,573 USD
Retailer 11$1,653 USD
Retailer 4$1,739 USD
Retailer 2$1,790 USD
Retailer 9$2,012 USD
Retailer 12$2,101 USD
Retailer 13$2,415 USD
Retailer 16$2,834 USD
Retailer 5$3,377 USD
Retailer 6$3,396 USD
Retailer 14$3,702 USD
Retailer 7$3,776 USD
Brilliant Earth$6,490 USD

39 data points across 16 retailers

18 retailers$1,260 USD to $6,490 USD

Retailer 1
-
$956 USD
Price last confirmed 38 days ago
Retailer 2
-
$1,040 USD
View
Price last confirmed 38 days ago
Retailer 3
-
$1,093 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,260 USD
View
A
Retailer 5
-
$1,573 USD
View
A
Retailer 6
-
$1,653 USD
£1,302 GBP
View
B+
Retailer 7
-
$1,739 USD
View
A
Retailer 8
-
$1,790 USD
€1,705 EUR
View
B+
Retailer 9
-
$2,012 USD
A$3,095 AUD
View
B+
Retailer 10
-
$2,101 USD
ZAR 33,936 ZAR
View
B+
Retailer 11
-
$2,415 USD
View
B+
Retailer 12
-
$2,834 USD
View
Retailer 13
-
$3,117 USD
View
Price last confirmed 34 days ago
Retailer 14
-
$3,377 USD
View
Price last confirmed 20 days ago
B
Retailer 15
-
$3,396 USD
View
Retailer 16
-
$3,702 USD
£2,915 GBP
View
Price last confirmed 10 days ago
B
Retailer 17
-
$3,776 USD
View
Most Expensive
B
Brilliant Earth
7670352A · Oct 29
$6,490 USD
View
17 more retailers have this diamond
Prices start from $1,260 USDSave up to $5,230 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 Round
$1,260 USD