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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 $179 CAD
HK$1,000 HKD
As of October 30, 2026
Save $914 CAD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,093 CAD 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 $179 to $1,093, a $914 spread on the same certified stone. MOH London lists it at $1,093. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,093 CAD|Low: $64 CAD|High: $1,116 CAD|Avg: $337 CAD|-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$64 CAD
Retailer 10$133 CAD
Retailer 3$140 CAD
Retailer 7$230 CAD
Retailer 5$250 CAD
Retailer 6$283 CAD
Retailer 9$317 CAD
Retailer 8$318 CAD
Retailer 12$426 CAD
Retailer 11$474 CAD
Retailer 2$503 CAD
MOH London$1,093 CAD

37 data points across 12 retailers

14 retailers$179 CAD to $1,093 CAD

Retailer 1
-
$120 CAD
$86 USD
Price last confirmed 12 days ago
Retailer 2
-
$140 CAD
$100 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$158 CAD
$113 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$179 CAD
HK$1,000 HKD
View
Retailer 5
-
$230 CAD
$165 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$250 CAD
£141 GBP
View
B+
Retailer 7
-
$283 CAD
€193 EUR
View
B+
Retailer 8
-
$317 CAD
$227 USD
View
Retailer 9
-
$318 CAD
$228 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
$426 CAD
SGD 412 SGD
View
B
Retailer 11
-
$474 CAD
$339 USD
View
Retailer 12
-
$478 CAD
$342 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$503 CAD
$360 USD
View
Most Expensive
B
MOH London
LG803661808 · Oct 25
$1,093 CAD
£616 GBP
View
13 more retailers have this diamond
Prices start from $179 CADSave up to $914 CAD

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
$179 CAD