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Round|Lab Grown|IGI

1.65ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG602381243

Shape and cutting style on the report: Round brilliant

Certificate IGI LG602381243

Diamond specifications and retailer prices

From $368 NZD
$207 USD
As of November 1, 2026
Save $1,463 NZD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,831 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.65ct lab-grown round diamond

This 1.65ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG602381243 or 602381243. Listed at 17 retailers as of November 1, 2026, with prices from $368 to $1,831, a $1,463 spread on the same certified stone. MOH London lists it at $1,831. 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

1.65
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602381243
Dimensions7.63 × 7.60 × 4.61 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.63 mm7.60 mm1.65 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602381243
Side View
Table 59.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.5%

Caratlytics Score

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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: Nov 1
Current: $1,831 NZD|Low: $354 NZD|High: $1,853 NZD|Avg: $920 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 9$368 NZD
Retailer 3$427 NZD
Retailer 10$457 NZD
Retailer 11$622 NZD
Retailer 5$771 NZD
Retailer 6$813 NZD
Retailer 2$840 NZD
Retailer 12$921 NZD
Retailer 4$1,468 NZD
Retailer 7$1,473 NZD
Retailer 8$1,487 NZD
MOH London$1,831 NZD

43 data points across 12 retailers

17 retailers$368 NZD to $1,831 NZD

A
Cheapest Retailer
-
$368 NZD
$207 USD
A
Retailer 2
-
$412 NZD
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$427 NZD
$240 USD
View
Retailer 4
-
$457 NZD
$257 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$457 NZD
$257 USD
View
A
Retailer 6
-
$523 NZD
HK$2,300 HKD
View
B+
Retailer 7
-
$622 NZD
$350 USD
View
A
Retailer 8
-
$771 NZD
€413 EUR
View
A
Retailer 9
-
$813 NZD
£360 GBP
View
A
Retailer 10
-
$840 NZD
£372 GBP
View
A
Retailer 11
-
$921 NZD
$518 USD
View
B+
Retailer 12
-
$942 NZD
$530 USD
View
Retailer 13
-
$1,369 NZD
$770 USD
View
Price last confirmed 54 days ago
B
Retailer 14
-
$1,468 NZD
$826 USD
View
B
Retailer 15
-
$1,473 NZD
$829 USD
View
B
Retailer 16
-
$1,487 NZD
SGD 1,131 SGD
View
Most Expensive
B
MOH London
LG602381243 · Nov 1
$1,831 NZD
£811 GBP
View
16 more retailers have this diamond
Prices start from $368 NZDSave up to $1,463 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
1.65ct Round
$368 NZD