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Round|Lab Grown|IGI

6.51ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG581318483

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581318483

Diamond specifications and retailer prices

From $1,733 NZD
$977 USD
As of October 29, 2026
Save $6,233 NZD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,967 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 6.51ct lab-grown round diamond

This 6.51ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG581318483 or 581318483. Listed at 16 retailers as of October 29, 2026, with prices from $1,733 to $7,967, a $6,233 spread on the same certified stone. Blue Nile lists it at $7,967. 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
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581318483
Dimensions12.04 × 11.98 × 7.39 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
12.04 mm11.98 mm6.51 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581318483
Side View
Table 56.0%Crown 35.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.5%

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: $7,967 NZD|Low: $1,155 NZD|High: $9,353 NZD|Avg: $4,007 NZD|+0.1%
Blue Nile
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
October 31, 2026
Retailer 9$1,618 NZD
Retailer 3$1,733 NZD
Retailer 12$1,886 NZD
Retailer 15$2,012 NZD
Retailer 17$2,012 NZD
Retailer 11$2,324 NZD
Retailer 4$2,864 NZD
Retailer 2$2,882 NZD
Retailer 16$3,007 NZD
Retailer 6$3,217 NZD
Retailer 18$3,770 NZD
Retailer 5$4,267 NZD
Retailer 13$4,335 NZD
Retailer 14$6,857 NZD
Retailer 7$7,006 NZD
Retailer 8$7,931 NZD
Blue Nile$7,967 NZD
Retailer 10$9,353 NZD

33 data points across 18 retailers

16 retailers$1,733 NZD to $7,967 NZD

A
Cheapest Retailer
-
$1,733 NZD
$977 USD
A
Retailer 2
-
$1,886 NZD
$1,063 USD
View
Retailer 3
-
$2,012 NZD
$1,134 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$2,012 NZD
$1,134 USD
View
A
Retailer 5
-
$2,324 NZD
$1,310 USD
View
B+
Retailer 6
-
$2,864 NZD
$1,614 USD
View
A
Retailer 7
-
$2,882 NZD
€1,547 EUR
View
Retailer 8
-
$3,007 NZD
£1,334 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$3,217 NZD
$1,813 USD
View
B+
Retailer 10
-
$3,770 NZD
$2,125 USD
View
B+
Retailer 11
-
$4,267 NZD
$2,405 USD
View
B+
Retailer 12
-
$4,335 NZD
$2,443 USD
View
B
Retailer 13
-
$6,857 NZD
£3,043 GBP
View
Retailer 14
-
$7,006 NZD
$3,949 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
$7,931 NZD
$4,470 USD
View
Most Expensive
B
Blue Nile
25247267 · Oct 31
$7,967 NZD
$4,490 USD
View
15 more retailers have this diamond
Prices start from $1,733 NZDSave up to $6,233 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 Round
$1,733 NZD