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Round|Lab Grown|IGI

1.65ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG440012524

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012524

Diamond specifications and retailer prices

From $1,150 USD
As of October 29, 2026
Save $3,143 USD (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,293 USD at MOH London · As of October 27, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012524 or 440012524. Listed at 11 retailers as of October 27, 2026, with prices from $1,150 to $4,293, a $3,143 spread on the same certified stone. MOH London lists it at $4,293. 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
J
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012524
Dimensions7.54 × 7.51 × 4.64 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.54 mm7.51 mm1.65 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012524
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.6%

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: $4,293 USD|Low: $919 USD|High: $4,343 USD|Avg: $1,912 USD|-0.9%
MOH London
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
October 29, 2026
Retailer 7$1,150 USD
Retailer 8$1,170 USD
Retailer 11$1,251 USD
Retailer 13$1,288 USD
Retailer 9$1,334 USD
Retailer 14$1,334 USD
Retailer 5$1,463 USD
Retailer 2$1,557 USD
Retailer 4$1,905 USD
Retailer 10$2,119 USD
Retailer 12$2,501 USD
Retailer 3$2,629 USD
Retailer 6$2,984 USD
MOH London$4,293 USD

23 data points across 14 retailers

11 retailers$1,150 USD to $4,293 USD

A
Cheapest Retailer
-
$1,150 USD
A
Retailer 2
-
$1,170 USD
View
A
Retailer 3
-
$1,251 USD
View
A
Retailer 4
-
$1,288 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,334 USD
View
B+
Retailer 6
-
$1,334 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$1,557 USD
£1,226 GBP
View
B
Retailer 8
-
$2,119 USD
View
B
Retailer 9
-
$2,501 USD
View
B
Retailer 10
-
$2,629 USD
View
Most Expensive
B
MOH London
LG440012524 · Oct 27
$4,293 USD
£3,380 GBP
View
10 more retailers have this diamond
Prices start from $1,150 USDSave up to $3,143 USD

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
$1,150 USD