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Oval|Lab Grown|IGI

6.51ct G VS1 Oval Lab Grown Diamond

ID • G/VS1 • IGI LG652426330

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG652426330

Diamond specifications and retailer prices

From $1,549 NZD
$873 USD
As of October 29, 2026
Save $9,629 NZD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $11,178 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.51ct lab-grown oval diamond

This 6.51ct 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 LG652426330 or 652426330. Listed at 23 retailers as of October 29, 2026, with prices from $1,549 to $11,178, a $9,629 spread on the same certified stone. Brilliant Earth lists it at $11,178. 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

6.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652426330
Dimensions15.27 × 10.31 × 6.47 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.27 mm10.31 mm6.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652426330
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.8%

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 29
Current: $11,178 NZD|Low: $1,487 NZD|High: $12,136 NZD|Avg: $3,782 NZD|-7.6%
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
November 1, 2026
Retailer 3$1,549 NZD
Retailer 9$1,686 NZD
Retailer 5$1,733 NZD
Retailer 7$1,797 NZD
Retailer 2$1,924 NZD
Retailer 16$2,111 NZD
Retailer 17$2,573 NZD
Retailer 10$2,692 NZD
Retailer 18$2,729 NZD
Retailer 11$2,764 NZD
Retailer 12$3,330 NZD
Retailer 15$3,477 NZD
Retailer 13$3,547 NZD
Retailer 8$5,051 NZD
Retailer 4$5,621 NZD
Retailer 6$5,653 NZD
Retailer 14$6,771 NZD
Brilliant Earth$11,178 NZD

39 data points across 18 retailers

23 retailers$1,549 NZD to $11,178 NZD

A
Cheapest Retailer
-
$1,549 NZD
$873 USD
A
Retailer 2
-
$1,686 NZD
$950 USD
View
A
Retailer 3
-
$1,733 NZD
$977 USD
View
Final sale: no returns
Retailer 4
-
$1,797 NZD
$1,013 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,797 NZD
$1,013 USD
View
A
Retailer 6
-
$1,924 NZD
£854 GBP
View
A
Retailer 7
-
$2,111 NZD
$1,190 USD
View
B+
Retailer 8
-
$2,573 NZD
$1,450 USD
View
A
Retailer 9
-
$2,692 NZD
$1,517 USD
View
A
Retailer 10
-
$2,729 NZD
€1,465 EUR
View
A
Retailer 11
-
$2,764 NZD
£1,227 GBP
View
A
Retailer 12
-
$3,330 NZD
A$2,887 AUD
View
A
Retailer 13
-
$3,477 NZD
ZAR 31,656 ZAR
View
A
Retailer 14
-
$3,547 NZD
$1,999 USD
View
B+
Retailer 15
-
$4,371 NZD
$2,463 USD
View
B+
Retailer 16
-
$4,576 NZD
$2,579 USD
View
B+
Retailer 17
-
$4,975 NZD
£2,208 GBP
View
B+
Retailer 18
-
$5,051 NZD
$2,847 USD
View
B+
Retailer 19
-
$5,621 NZD
$3,168 USD
View
B+
Retailer 20
-
$5,653 NZD
$3,186 USD
View
B
Retailer 21
-
$6,235 NZD
$3,514 USD
View
B
Retailer 22
-
$6,771 NZD
£3,005 GBP
View
Most Expensive
B
Brilliant Earth
17796174A · Oct 31
$11,178 NZD
$6,300 USD
View
22 more retailers have this diamond
Prices start from $1,549 NZDSave up to $9,629 NZD

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
6.51ct Oval
$1,549 NZD