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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG617427460

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG617427460

Diamond specifications and retailer prices

From $230 SGD
$180 USD
As of November 2, 2026
Save $1,356 SGD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,586 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617427460 or 617427460. Listed at 14 retailers as of November 2, 2026, with prices from $230 to $1,586, a $1,356 spread on the same certified stone. Brilliant Earth lists it at $1,586. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617427460
Dimensions8.33 × 5.89 × 4.02 mm
L/W Ratio1.41
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
8.33 mm5.89 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617427460
Side View
Table 65.0%Crown 43.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.3%

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: Nov 2
Current: $1,586 SGD|Low: $230 SGD|High: $1,816 SGD|Avg: $696 SGD|-12.7%
Brilliant Earth
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
November 2, 2026
Retailer 12$230 SGD
Retailer 9$267 SGD
Retailer 4$285 SGD
Retailer 5$285 SGD
Retailer 11$367 SGD
Retailer 3$505 SGD
Retailer 7$512 SGD
Retailer 2$514 SGD
Retailer 10$711 SGD
Retailer 14$723 SGD
Retailer 13$917 SGD
Retailer 6$968 SGD
Retailer 8$1,342 SGD
Brilliant Earth$1,586 SGD

38 data points across 14 retailers

14 retailers$230 SGD to $1,586 SGD

A
Cheapest Retailer
-
$230 SGD
$180 USD
A
Retailer 2
-
$267 SGD
$209 USD
View
A
Retailer 3
-
$285 SGD
$223 USD
View
Retailer 4
-
$285 SGD
$223 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$505 SGD
$395 USD
View
A
Retailer 6
-
$512 SGD
€381 EUR
View
A
Retailer 7
-
$514 SGD
£316 GBP
View
A
Retailer 8
-
$711 SGD
$556 USD
View
A
Retailer 9
-
$723 SGD
$565 USD
View
B+
Retailer 10
-
$917 SGD
$717 USD
View
B+
Retailer 11
-
$968 SGD
$757 USD
View
B+
Retailer 12
-
$978 SGD
£602 GBP
View
B+
Retailer 13
-
$1,342 SGD
£826 GBP
View
Most Expensive
B
Brilliant Earth
9016409A · Nov 2
$1,586 SGD
$1,240 USD
View
13 more retailers have this diamond
Prices start from $230 SGDSave up to $1,356 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 Radiant
$230 SGD