CaratHunter
Plans
Radiant|Lab Grown|IGI

3.51ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG660405323

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

Certificate IGI LG660405323

Diamond specifications and retailer prices

From $611 SGD
$478 USD
As of October 30, 2026
Save $2,190 SGD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,801 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 3.51ct lab-grown radiant diamond

This 3.51ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG660405323 or 660405323. Listed at 16 retailers as of October 29, 2026, with prices from $611 to $2,801, a $2,190 spread on the same certified stone. MOH London lists it at $2,801. 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

3.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle28.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660405323
Dimensions10.40 × 7.19 × 5.03 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.40 mm7.19 mm3.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660405323
Side View
Table 63.0%Crown 42.9°Girdle: MED-STKPavilion 28.7°Culet: NoneDepth 70.0%

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 30
Current: $2,801 SGD|Low: $587 SGD|High: $2,819 SGD|Avg: $1,403 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 31, 2026
Retailer 9$611 SGD
Retailer 3$684 SGD
Retailer 4$685 SGD
Retailer 10$758 SGD
Retailer 7$940 SGD
Retailer 6$1,037 SGD
Retailer 5$1,160 SGD
Retailer 13$1,184 SGD
Retailer 2$1,259 SGD
Retailer 8$2,038 SGD
Retailer 12$2,438 SGD
Retailer 11$2,661 SGD
MOH London$2,801 SGD

43 data points across 13 retailers

16 retailers$611 SGD to $2,801 SGD

A
Cheapest Retailer
-
$611 SGD
$478 USD
A
Retailer 2
-
$684 SGD
$535 USD
View
Final sale: no returns
A
Retailer 3
-
$685 SGD
$536 USD
View
A
Retailer 4
-
$758 SGD
$593 USD
View
Retailer 5
-
$758 SGD
$593 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$940 SGD
$735 USD
View
A
Retailer 7
-
$1,037 SGD
£639 GBP
View
B+
Retailer 8
-
$1,160 SGD
$907 USD
View
B+
Retailer 9
-
$1,184 SGD
$926 USD
View
A
Retailer 10
-
$1,259 SGD
£775 GBP
View
B
Retailer 11
-
$2,038 SGD
$1,594 USD
View
B
Retailer 12
-
$2,214 SGD
$1,732 USD
View
B
Retailer 13
-
$2,438 SGD
$1,907 USD
View
B
Retailer 14
-
$2,474 SGD
$1,936 USD
View
B
Retailer 15
-
$2,661 SGD
$2,082 USD
View
Most Expensive
B
MOH London
LG660405323 · Oct 29
$2,801 SGD
£1,725 GBP
View
15 more retailers have this diamond
Prices start from $611 SGDSave up to $2,190 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
3.51ct Radiant
$611 SGD