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Round|Lab Grown|IGI

1.70ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG451056287

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056287

Diamond specifications and retailer prices

From $1,572 SGD
$1,230 USD
As of October 28, 2026
Save $4,712 SGD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,285 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056287 or 451056287. Listed at 12 retailers as of October 28, 2026, with prices from $1,572 to $6,285, a $4,712 spread on the same certified stone. MOH London lists it at $6,285. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056287
Dimensions7.57 × 7.62 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.57 mm7.62 mm1.70 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056287
Side View
Table 57.5%Crown 34.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

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 28
Current: $6,285 SGD|Low: $1,340 SGD|High: $6,327 SGD|Avg: $2,873 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
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 8$1,572 SGD
Retailer 7$1,677 SGD
Retailer 11$1,826 SGD
Retailer 13$1,878 SGD
Retailer 9$1,946 SGD
Retailer 14$1,946 SGD
Retailer 3$2,167 SGD
Retailer 2$2,554 SGD
Retailer 5$2,688 SGD
Retailer 10$3,078 SGD
Retailer 4$3,627 SGD
Retailer 12$3,647 SGD
Retailer 6$5,567 SGD
MOH London$6,285 SGD

23 data points across 14 retailers

12 retailers$1,572 SGD to $6,285 SGD

A
Cheapest Retailer
-
$1,572 SGD
$1,230 USD
A
Retailer 2
-
$1,677 SGD
$1,312 USD
View
B+
Retailer 3
-
$1,826 SGD
$1,428 USD
View
B+
Retailer 4
-
$1,878 SGD
$1,469 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,946 SGD
$1,522 USD
View
Retailer 6
-
$1,946 SGD
$1,522 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$2,167 SGD
$1,695 USD
View
B+
Retailer 8
-
$2,554 SGD
£1,573 GBP
View
B
Retailer 9
-
$3,078 SGD
$2,408 USD
View
B
Retailer 10
-
$3,627 SGD
$2,837 USD
View
B
Retailer 11
-
$3,647 SGD
$2,853 USD
View
Most Expensive
B
MOH London
LG451056287 · Oct 29
$6,285 SGD
£3,871 GBP
View
11 more retailers have this diamond
Prices start from $1,572 SGDSave up to $4,712 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
$1,572 SGD