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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 $1,391 AUD
$977 USD
As of October 29, 2026
Save $5,001 AUD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,392 AUD at Blue Nile · As of October 29, 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 $1,391 to $6,392, a $5,001 spread on the same certified stone. Blue Nile lists it at $6,392. 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: $6,392 AUD|Low: $927 AUD|High: $7,504 AUD|Avg: $3,210 AUD|+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 29, 2026
Retailer 9$1,298 AUD
Retailer 3$1,391 AUD
Retailer 11$1,513 AUD
Retailer 14$1,614 AUD
Retailer 16$1,614 AUD
Retailer 4$2,298 AUD
Retailer 17$2,299 AUD
Retailer 2$2,320 AUD
Retailer 15$2,413 AUD
Retailer 6$2,581 AUD
Retailer 18$3,025 AUD
Retailer 5$3,424 AUD
Retailer 12$3,478 AUD
Retailer 13$5,502 AUD
Retailer 7$5,621 AUD
Retailer 8$6,363 AUD
Blue Nile$6,392 AUD
Retailer 10$7,504 AUD

32 data points across 18 retailers

16 retailers$1,391 AUD to $6,392 AUD

A
Cheapest Retailer
-
$1,391 AUD
$977 USD
A
Retailer 2
-
$1,513 AUD
$1,063 USD
View
Retailer 3
-
$1,614 AUD
$1,134 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$1,614 AUD
$1,134 USD
View
B+
Retailer 5
-
$2,298 AUD
$1,614 USD
View
B+
Retailer 6
-
$2,299 AUD
$1,615 USD
View
B+
Retailer 7
-
$2,320 AUD
€1,552 EUR
View
Retailer 8
-
$2,413 AUD
£1,334 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$2,581 AUD
$1,813 USD
View
B+
Retailer 10
-
$3,025 AUD
$2,125 USD
View
B+
Retailer 11
-
$3,424 AUD
$2,405 USD
View
B+
Retailer 12
-
$3,478 AUD
$2,443 USD
View
B
Retailer 13
-
$5,502 AUD
£3,043 GBP
View
Retailer 14
-
$5,621 AUD
$3,949 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
$6,363 AUD
$4,470 USD
View
Most Expensive
B
Blue Nile
25247267 · Oct 29
$6,392 AUD
$4,490 USD
View
15 more retailers have this diamond
Prices start from $1,391 AUDSave up to $5,001 AUD

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
$1,391 AUD