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Round|Lab Grown|IGI

1.65ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG834620024

Shape and cutting style on the report: Round brilliant

Certificate IGI LG834620024

Diamond specifications and retailer prices

From $185 USD
As of November 1, 2026
Save $889 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,074 USD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG834620024 or 834620024. Listed at 9 retailers as of October 26, 2026, with prices from $185 to $1,074, a $889 spread on the same certified stone. MOH London lists it at $1,074. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834620024
Dimensions7.57 × 7.61 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.57 mm7.61 mm1.65 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834620024
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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: $1,074 USD|Low: $180 USD|High: $1,100 USD|Avg: $580 USD|-2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$185 USD
Retailer 6$215 USD
Retailer 3$357 USD
Retailer 4$394 USD
Retailer 7$569 USD
Retailer 8$737 USD
Retailer 5$779 USD
Retailer 9$930 USD
MOH London$1,074 USD

28 data points across 9 retailers

9 retailers$185 USD to $1,074 USD

A
Cheapest Retailer
-
$185 USD
A
Retailer 2
-
$215 USD
View
A
Retailer 3
-
$357 USD
£281 GBP
View
A
Retailer 4
-
$394 USD
€375 EUR
View
B+
Retailer 5
-
$569 USD
View
B+
Retailer 6
-
$737 USD
View
B
Retailer 7
-
$779 USD
View
Retailer 8
-
$930 USD
SGD 1,257 SGD
View
Price last confirmed 19 days ago
Most Expensive
B
MOH London
LG834620024 · Oct 26
$1,074 USD
£846 GBP
View
8 more retailers have this diamond
Prices start from $185 USDSave up to $889 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
$185 USD