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Round|Lab Grown|IGI

1.62ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG780656005

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780656005

Diamond specifications and retailer prices

From $239 USD
As of October 29, 2026
Save $955 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,194 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.62ct lab-grown round diamond

This 1.62ct 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 LG780656005 or 780656005. Listed at 16 retailers as of October 29, 2026, with prices from $239 to $1,194, a $955 spread on the same certified stone. MOH London lists it at $1,194. 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

1.62
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780656005
Dimensions7.57 × 7.52 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.57 mm7.52 mm1.62 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780656005
Side View
Table 58.0%Crown 33.9°Girdle: THN-STKPavilion 40.7°Culet: NoneDepth 61.2%

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: Oct 29
Current: $1,194 USD|Low: $229 USD|High: $1,223 USD|Avg: $568 USD|-2.4%
MOH London
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 30, 2026
Retailer 13$239 USD
Retailer 14$268 USD
Retailer 4$277 USD
Retailer 7$296 USD
Retailer 15$296 USD
Retailer 2$463 USD
Retailer 10$487 USD
Retailer 5$499 USD
Retailer 6$507 USD
Retailer 16$552 USD
Retailer 9$559 USD
Retailer 12$770 USD
Retailer 11$835 USD
Retailer 3$952 USD
Retailer 8$1,040 USD
MOH London$1,194 USD

34 data points across 16 retailers

16 retailers$239 USD to $1,194 USD

A
Cheapest Retailer
-
$239 USD
A
Retailer 2
-
$268 USD
View
Final sale: no returns
A
Retailer 3
-
$277 USD
View
A
Retailer 4
-
$296 USD
View
A
Retailer 5
-
$296 USD
View
A
Retailer 6
-
$463 USD
£365 GBP
View
A
Retailer 7
-
$487 USD
€464 EUR
View
A
Retailer 8
-
$499 USD
View
A
Retailer 9
-
$507 USD
View
A
Retailer 10
-
$552 USD
View
B+
Retailer 11
-
$559 USD
£440 GBP
View
B
Retailer 12
-
$770 USD
View
B+
Retailer 13
-
$835 USD
View
B
Retailer 14
-
$952 USD
View
B
Retailer 15
-
$1,040 USD
View
Most Expensive
B
MOH London
LG780656005 · Oct 29
$1,194 USD
£940 GBP
View
15 more retailers have this diamond
Prices start from $239 USDSave up to $955 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
1.62ct Round
$239 USD