CaratHunter
Plans
Round|Lab Grown|IGI

0.55ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG451055359

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055359

Diamond specifications and retailer prices

From $376 SGD
$294 USD
As of October 29, 2026
Save $1,501 SGD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,877 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055359 or 451055359. Listed at 11 retailers as of October 29, 2026, with prices from $376 to $1,877, a $1,501 spread on the same certified stone. MOH London lists it at $1,877. 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

0.55
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055359
Dimensions5.18 × 5.21 × 3.28 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
5.18 mm5.21 mm0.55 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055359
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
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: Oct 29
Current: $1,877 SGD|Low: $361 SGD|High: $1,888 SGD|Avg: $800 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 29, 2026
Retailer 7$376 SGD
Retailer 12$421 SGD
Retailer 3$436 SGD
Retailer 8$460 SGD
Retailer 9$465 SGD
Retailer 11$465 SGD
Retailer 4$665 SGD
Retailer 10$763 SGD
Retailer 2$863 SGD
Retailer 5$929 SGD
Retailer 6$1,431 SGD
Retailer 13$1,497 SGD
MOH London$1,877 SGD

20 data points across 13 retailers

11 retailers$376 SGD to $1,877 SGD

A
Cheapest Retailer
-
$376 SGD
$294 USD
A
Retailer 2
-
$421 SGD
$329 USD
View
Final sale: no returns
A
Retailer 3
-
$436 SGD
$341 USD
View
B+
Retailer 4
-
$460 SGD
$360 USD
View
B+
Retailer 5
-
$465 SGD
$364 USD
View
B+
Retailer 6
-
$465 SGD
$364 USD
View
B+
Retailer 7
-
$763 SGD
$597 USD
View
B+
Retailer 8
-
$863 SGD
€643 EUR
View
B
Retailer 9
-
$1,431 SGD
$1,119 USD
View
B
Retailer 10
-
$1,497 SGD
$1,171 USD
View
Most Expensive
B
MOH London
LG451055359 · Oct 29
$1,877 SGD
£1,156 GBP
View
10 more retailers have this diamond
Prices start from $376 SGDSave up to $1,501 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
0.55ct Round
$376 SGD