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Round|Lab Grown|IGI

0.51ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • IGI LG803661808

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803661808

Diamond specifications and retailer prices

From $164 SGD
HK$1,000 HKD
As of October 30, 2026
Save $836 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,000 SGD at MOH London · As of October 25, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG803661808 or 803661808. Listed at 14 retailers as of October 25, 2026, with prices from $164 to $1,000, a $836 spread on the same certified stone. MOH London lists it at $1,000. 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

0.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803661808
Dimensions5.11 × 5.06 × 3.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.11 mm5.06 mm0.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG803661808
Side View
Table 62.0%Crown 35.2°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 60.9%

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: $1,000 SGD|Low: $59 SGD|High: $1,021 SGD|Avg: $310 SGD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 4$59 SGD
Retailer 10$121 SGD
Retailer 3$128 SGD
Retailer 7$211 SGD
Retailer 5$229 SGD
Retailer 6$259 SGD
Retailer 9$290 SGD
Retailer 8$291 SGD
Retailer 12$390 SGD
Retailer 11$433 SGD
Retailer 2$460 SGD
MOH London$1,000 SGD

36 data points across 12 retailers

14 retailers$164 SGD to $1,000 SGD

Retailer 1
-
$110 SGD
$86 USD
Price last confirmed 13 days ago
Retailer 2
-
$128 SGD
$100 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$144 SGD
$113 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$164 SGD
HK$1,000 HKD
View
Retailer 5
-
$211 SGD
$165 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$229 SGD
£141 GBP
View
B+
Retailer 7
-
$259 SGD
€193 EUR
View
B+
Retailer 8
-
$290 SGD
$227 USD
View
Retailer 9
-
$291 SGD
$228 USD
View
Price last confirmed 13 days ago
Retailer 10
-
$390 SGD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$433 SGD
$339 USD
View
Retailer 12
-
$437 SGD
$342 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$460 SGD
$360 USD
View
Most Expensive
B
MOH London
LG803661808 · Oct 25
$1,000 SGD
£616 GBP
View
13 more retailers have this diamond
Prices start from $164 SGDSave up to $836 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
0.51ct Round
$164 SGD