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1.70ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG499105228

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105228

Diamond specifications and retailer prices

From $1,202 SGD
$940 USD
As of October 30, 2026
Save $4,471 SGD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,673 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct 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 LG499105228 or 499105228. Listed at 10 retailers as of October 29, 2026, with prices from $1,202 to $5,673, a $4,471 spread on the same certified stone. MOH London lists it at $5,673. 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

1.70
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105228
Dimensions7.55 × 7.61 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.55 mm7.61 mm1.70 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105228
Side View
Table 54.5%Crown 35.3°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.6%

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: Oct 30
Current: $5,673 SGD|Low: $1,202 SGD|High: $5,718 SGD|Avg: $2,671 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,202 SGD
Retailer 4$1,514 SGD
Retailer 7$1,647 SGD
Retailer 9$1,695 SGD
Retailer 5$1,757 SGD
Retailer 11$2,499 SGD
Retailer 6$2,786 SGD
Retailer 8$3,292 SGD
Retailer 10$3,461 SGD
Retailer 3$3,927 SGD
MOH London$5,673 SGD

17 data points across 11 retailers

10 retailers$1,202 SGD to $5,673 SGD

A
Cheapest Retailer
-
$1,202 SGD
$940 USD
B+
Retailer 2
-
$1,514 SGD
$1,184 USD
View
B+
Retailer 3
-
$1,647 SGD
$1,288 USD
View
B+
Retailer 4
-
$1,695 SGD
$1,326 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,757 SGD
$1,374 USD
View
Retailer 6
-
$1,757 SGD
$1,374 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,786 SGD
$2,179 USD
View
B
Retailer 8
-
$3,292 SGD
$2,575 USD
View
B
Retailer 9
-
$3,461 SGD
$2,707 USD
View
Most Expensive
B
MOH London
LG499105228 · Oct 29
$5,673 SGD
£3,494 GBP
View
9 more retailers have this diamond
Prices start from $1,202 SGDSave up to $4,471 SGD

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
1.70ct Round
$1,202 SGD