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Round|Lab Grown|IGI

6.73ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG591378421

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591378421

Diamond specifications and retailer prices

From $952 USD
As of October 29, 2026
Save $6,218 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,170 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 6.73ct lab-grown round diamond

This 6.73ct 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 LG591378421 or 591378421. Listed at 21 retailers as of October 29, 2026, with prices from $952 to $7,170, a $6,218 spread on the same certified stone. Brilliant Earth lists it at $7,170. 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

6.73
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591378421
Dimensions12.08 × 12.17 × 7.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
12.08 mm12.17 mm6.73 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591378421
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.2%

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 29
Current: $7,170 USD|Low: $952 USD|High: $9,570 USD|Avg: $2,637 USD|-9.8%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 7$952 USD
Retailer 20$1,036 USD
Retailer 10$1,065 USD
Retailer 3$1,105 USD
Retailer 5$1,105 USD
Retailer 4$1,453 USD
Retailer 8$1,596 USD
Retailer 2$1,697 USD
Retailer 11$1,768 USD
Retailer 17$1,770 USD
Retailer 16$1,827 USD
Retailer 19$2,046 USD
Retailer 13$2,138 USD
Retailer 21$2,381 USD
Retailer 9$2,931 USD
Retailer 6$3,106 USD
Retailer 14$3,426 USD
Retailer 12$3,427 USD
Retailer 18$3,752 USD
Retailer 15$3,845 USD
Retailer 22$5,220 USD
Brilliant Earth$7,170 USD

34 data points across 22 retailers

21 retailers$952 USD to $7,170 USD

A
Cheapest Retailer
-
$952 USD
A
Retailer 2
-
$1,036 USD
View
A
Retailer 3
-
$1,105 USD
View
Retailer 4
-
$1,105 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$1,453 USD
£1,144 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,596 USD
View
A
Retailer 7
-
$1,697 USD
£1,336 GBP
View
B+
Retailer 8
-
$1,768 USD
View
A
Retailer 9
-
$1,770 USD
View
A
Retailer 10
-
$1,827 USD
€1,740 EUR
View
Retailer 11
-
$2,046 USD
A$3,147 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$2,138 USD
ZAR 34,533 ZAR
View
B+
Retailer 13
-
$2,381 USD
View
B+
Retailer 14
-
$2,931 USD
View
B
Retailer 15
-
$3,106 USD
View
B
Retailer 16
-
$3,426 USD
View
Retailer 17
-
$3,427 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$3,752 USD
£2,954 GBP
View
B
Retailer 19
-
$3,845 USD
View
Retailer 20
-
$5,220 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
7752670A · Oct 30
$7,170 USD
View
20 more retailers have this diamond
Prices start from $952 USDSave up to $6,218 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
6.73ct Round
$952 USD