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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG648445944

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

Certificate IGI LG648445944

Diamond specifications and retailer prices

From $403 SGD
As of November 4, 2026
Save $3,636 SGD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,038 SGD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG648445944 or 648445944. Listed at 25 retailers as of November 4, 2026, with prices from $403 to $4,038, a $3,636 spread on the same certified stone. Diamond Quarter lists it at $4,038. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648445944
Dimensions8.41 × 5.77 × 3.85 mm
L/W Ratio1.46
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
8.41 mm5.77 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648445944
Side View
Table 63.0%Crown 39.3°Girdle: MediumPavilion 35°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $880 SGD|Low: $403 SGD|High: $3,329 SGD|Avg: $1,216 SGD
Retailer 1
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Retailer 21
November 5, 2026
Retailer 4$403 SGD
Retailer 17$451 SGD
Retailer 21$466 SGD
Retailer 3$500 SGD
Retailer 13$572 SGD
Retailer 15$696 SGD
Retailer 7$703 SGD
Retailer 18$813 SGD
Retailer 10$831 SGD
Retailer 16$860 SGD
Retailer 1$880 SGD
Retailer 11$1,123 SGD
Retailer 12$1,172 SGD
Retailer 8$1,357 SGD
Retailer 6$1,464 SGD
Retailer 5$1,605 SGD
Retailer 14$1,663 SGD
Retailer 9$1,994 SGD
Retailer 20$2,002 SGD
Retailer 19$2,119 SGD
Retailer 2$3,316 SGD

35 data points across 21 retailers

25 retailers$403 SGD to $4,038 SGD

A+
Cheapest Retailer
-
$403 SGD
A
Retailer 2
-
$451 SGD
View
Final sale: no returns
A
Retailer 3
-
$466 SGD
View
A
Retailer 4
-
$500 SGD
View
A
Retailer 5
-
$572 SGD
View
A
Retailer 6
-
$696 SGD
View
A
Retailer 7
-
$703 SGD
View
A
Retailer 8
-
$813 SGD
View
A
Retailer 9
-
$831 SGD
View
A
Retailer 10
-
$860 SGD
View
A
Retailer 11
-
$880 SGD
View
A
Retailer 12
-
$1,123 SGD
View
A
Retailer 13
-
$1,172 SGD
View
B+
Retailer 14
-
$1,357 SGD
View
B+
Retailer 15
-
$1,464 SGD
View
B+
Retailer 16
-
$1,605 SGD
View
B+
Retailer 17
-
$1,660 SGD
View
B+
Retailer 18
-
$1,663 SGD
View
B+
Retailer 19
-
$1,671 SGD
View
B+
Retailer 20
-
$1,994 SGD
View
Retailer 21
-
$2,002 SGD
View
Price last confirmed 10 days ago
B+
Retailer 22
-
$2,119 SGD
View
Retailer 23
-
$3,316 SGD
View
Price last confirmed 8 days ago
Retailer 24
-
$3,335 SGD
View
Price last confirmed 38 days ago
Most Expensive
B
Diamond Quarter
1.55IFDLG4480A4N · Nov 5
$4,038 SGD
£2,488 GBP
View
24 more retailers have this diamond
Prices start from $403 SGDSave up to $3,636 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+
1.55ct Radiant
$403 SGD