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0.66ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG817623973

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817623973

Diamond specifications and retailer prices

From $251 NZD
$141 USD
As of November 1, 2026
Save $2,095 NZD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,345 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.66ct lab-grown round diamond

This 0.66ct lab-grown round sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817623973 or 817623973. Listed at 15 retailers as of November 1, 2026, with prices from $251 to $2,345, a $2,095 spread on the same certified stone. MOH London lists it at $2,345. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.66
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817623973
Dimensions5.64 × 5.60 × 3.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.64 mm5.60 mm0.66 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817623973
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.2%

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: Nov 1
Current: $2,345 NZD|Low: $251 NZD|High: $2,372 NZD|Avg: $790 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$251 NZD
Retailer 3$281 NZD
Retailer 5$281 NZD
Retailer 4$391 NZD
Retailer 2$953 NZD
MOH London$2,345 NZD

16 data points across 6 retailers

15 retailers$251 NZD to $2,345 NZD

Retailer 1
-
$217 NZD
$122 USD
Price last confirmed 25 days ago
Retailer 2
-
$226 NZD
$127 USD
View
Price last confirmed 41 days ago
A
Retailer 3
-
$251 NZD
$141 USD
View
Final sale: no returns
Retailer 4
-
$263 NZD
$148 USD
View
Price last confirmed 43 days ago
Retailer 5
-
$263 NZD
$148 USD
View
Price last confirmed 24 days ago
Retailer 6
-
$277 NZD
$156 USD
View
Price last confirmed 41 days ago
A
Retailer 7
-
$281 NZD
$158 USD
View
Retailer 8
-
$281 NZD
$158 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$281 NZD
$158 USD
View
Price last confirmed 31 days ago
A
Retailer 10
-
$391 NZD
$220 USD
View
Retailer 11
-
$903 NZD
$508 USD
View
Price last confirmed 33 days ago
Retailer 12
-
$903 NZD
$508 USD
View
Price last confirmed 42 days ago
B+
Retailer 13
-
$903 NZD
$508 USD
View
B+
Retailer 14
-
$953 NZD
$536 USD
View
Most Expensive
B
MOH London
LG817623973 · Nov 1
$2,345 NZD
£1,039 GBP
View
14 more retailers have this diamond
Prices start from $251 NZDSave up to $2,095 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
0.66ct Round
$251 NZD