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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 $424 NZD
$239 USD
As of October 29, 2026
Save $1,694 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,118 NZD 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 $424 to $2,118, a $1,694 spread on the same certified stone. MOH London lists it at $2,118. 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
Colour
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: $2,118 NZD|Low: $406 NZD|High: $2,170 NZD|Avg: $999 NZD|-2.4%
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 13$424 NZD
Retailer 14$476 NZD
Retailer 4$491 NZD
Retailer 7$525 NZD
Retailer 15$525 NZD
Retailer 10$822 NZD
Retailer 9$863 NZD
Retailer 5$885 NZD
Retailer 6$900 NZD
Retailer 16$979 NZD
Retailer 2$993 NZD
Retailer 12$1,366 NZD
Retailer 11$1,482 NZD
Retailer 3$1,689 NZD
Retailer 8$1,845 NZD
MOH London$2,118 NZD

34 data points across 16 retailers

16 retailers$424 NZD to $2,118 NZD

A
Cheapest Retailer
-
$424 NZD
$239 USD
A
Retailer 2
-
$476 NZD
$268 USD
View
Final sale: no returns
A
Retailer 3
-
$491 NZD
$277 USD
View
A
Retailer 4
-
$525 NZD
$296 USD
View
A
Retailer 5
-
$525 NZD
$296 USD
View
A
Retailer 6
-
$822 NZD
£365 GBP
View
A
Retailer 7
-
$863 NZD
€463 EUR
View
A
Retailer 8
-
$885 NZD
$499 USD
View
A
Retailer 9
-
$900 NZD
$507 USD
View
A
Retailer 10
-
$979 NZD
$552 USD
View
A
Retailer 11
-
$993 NZD
£441 GBP
View
B
Retailer 12
-
$1,366 NZD
$770 USD
View
B+
Retailer 13
-
$1,482 NZD
$835 USD
View
B
Retailer 14
-
$1,689 NZD
$952 USD
View
B
Retailer 15
-
$1,845 NZD
$1,040 USD
View
Most Expensive
B
MOH London
LG780656005 · Oct 29
$2,118 NZD
£940 GBP
View
15 more retailers have this diamond
Prices start from $424 NZDSave up to $1,694 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
1.62ct Round
$424 NZD