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Round|Lab Grown|IGI

1.70ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG447001700

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447001700

Diamond specifications and retailer prices

From $1,227 SGD
$960 USD
As of October 30, 2026
Save $5,058 SGD (80%) 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 LG447001700 or 447001700. Listed at 12 retailers as of October 29, 2026, with prices from $1,227 to $6,285, a $5,058 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001700
Dimensions7.71 × 7.75 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.71 mm7.75 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001700
Side View
Table 59.5%Crown 32.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.3%

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: $6,285 SGD|Low: $1,227 SGD|High: $6,335 SGD|Avg: $2,665 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
October 30, 2026
Retailer 2$1,227 SGD
Retailer 7$1,677 SGD
Retailer 10$1,826 SGD
Retailer 12$1,878 SGD
Retailer 8$1,946 SGD
Retailer 13$1,946 SGD
Retailer 3$2,167 SGD
Retailer 6$2,554 SGD
Retailer 5$2,688 SGD
Retailer 9$3,078 SGD
Retailer 4$3,627 SGD
Retailer 11$3,647 SGD
MOH London$6,285 SGD

37 data points across 13 retailers

12 retailers$1,227 SGD to $6,285 SGD

A
Cheapest Retailer
-
$1,227 SGD
$960 USD
B+
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
Retailer 5
-
$1,946 SGD
$1,522 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,946 SGD
$1,522 USD
View
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
LG447001700 · Oct 29
$6,285 SGD
£3,871 GBP
View
11 more retailers have this diamond
Prices start from $1,227 SGDSave up to $5,058 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
$1,227 SGD