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Round|Lab Grown|IGI

1.60ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG440012128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012128

Diamond specifications and retailer prices

From $900 USD
As of October 30, 2026
Save $4,000 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,900 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.6ct lab-grown round diamond

This 1.6ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012128 or 440012128. Listed at 10 retailers as of October 29, 2026, with prices from $900 to $4,900, a $4,000 spread on the same certified stone. MOH London lists it at $4,900. 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

1.60
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012128
Dimensions7.47 × 7.44 × 4.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.47 mm7.44 mm1.60 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012128
Side View
Table 55.5%Crown 35.8°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.4%

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 30
Current: $4,900 USD|Low: $900 USD|High: $4,939 USD|Avg: $2,395 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$900 USD
Retailer 3$1,308 USD
Retailer 5$1,464 USD
Retailer 8$1,751 USD
Retailer 7$2,093 USD
Retailer 4$2,399 USD
Retailer 6$2,827 USD
Retailer 9$3,396 USD
MOH London$4,900 USD

15 data points across 9 retailers

10 retailers$900 USD to $4,900 USD

A
Cheapest Retailer
-
$900 USD
A
Retailer 2
-
$1,308 USD
View
B+
Retailer 3
-
$1,423 USD
View
B+
Retailer 4
-
$1,464 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,517 USD
View
Retailer 6
-
$1,517 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,399 USD
View
B
Retailer 8
-
$2,827 USD
View
B
Retailer 9
-
$2,843 USD
View
Most Expensive
B
MOH London
LG440012128 · Oct 29
$4,900 USD
£3,858 GBP
View
9 more retailers have this diamond
Prices start from $900 USDSave up to $4,000 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
1.60ct Round
$900 USD