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Radiant|Lab Grown|IGI

1.55ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG514271363

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

Certificate IGI LG514271363

Diamond specifications and retailer prices

From $710 SGD
$555 USD
As of October 30, 2026
Save $2,577 SGD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,286 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG514271363 or 514271363. Listed at 14 retailers as of October 26, 2026, with prices from $710 to $3,286, a $2,577 spread on the same certified stone. MOH London lists it at $3,286. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514271363
Dimensions7.49 × 5.78 × 3.93 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.49 mm5.78 mm1.55 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514271363
Side View
Table 65.5%Crown 42.2°Girdle: MediumPavilion 30.2°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,286 SGD|Low: $508 SGD|High: $3,322 SGD|Avg: $1,315 SGD|-0.9%
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 31, 2026
Retailer 10$634 SGD
Retailer 3$710 SGD
Retailer 4$710 SGD
Retailer 11$786 SGD
Retailer 5$789 SGD
Retailer 9$965 SGD
Retailer 2$1,145 SGD
Retailer 13$1,223 SGD
Retailer 6$1,297 SGD
Retailer 7$1,509 SGD
Retailer 12$2,067 SGD
Retailer 8$2,113 SGD
MOH London$3,286 SGD

42 data points across 13 retailers

14 retailers$710 SGD to $3,286 SGD

Retailer 1
-
$634 SGD
$496 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$710 SGD
$555 USD
View
Final sale: no returns
Retailer 3
-
$710 SGD
$555 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$786 SGD
$615 USD
View
B+
Retailer 5
-
$789 SGD
$617 USD
View
B
Retailer 6
-
$965 SGD
$755 USD
View
B
Retailer 7
-
$1,145 SGD
€853 EUR
View
B
Retailer 8
-
$1,223 SGD
$957 USD
View
B
Retailer 9
-
$1,297 SGD
£799 GBP
View
B
Retailer 10
-
$1,509 SGD
$1,180 USD
View
B
Retailer 11
-
$1,827 SGD
£1,126 GBP
View
C
Retailer 12
-
$2,067 SGD
$1,617 USD
View
C
Retailer 13
-
$2,113 SGD
$1,653 USD
View
Most Expensive
B
MOH London
LG514271363 · Oct 26
$3,286 SGD
£2,024 GBP
View
13 more retailers have this diamond
Prices start from $710 SGDSave up to $2,577 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.

B+
1.55ct Radiant
$710 SGD