CaratHunter
Plans
Radiant|Lab Grown|IGI

0.81ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG648465420

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

Certificate IGI LG648465420

Diamond specifications and retailer prices

From $160 SGD
$125 USD
As of October 30, 2026
Save $513 SGD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $672 SGD at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

About this 0.81ct lab-grown radiant diamond

This 0.81ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648465420 or 648465420. Listed at 13 retailers as of October 30, 2026, with prices from $160 to $672, a $513 spread on the same certified stone. Friendly Diamonds lists it at $672. 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

0.81
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648465420
Dimensions6.43 × 4.60 × 3.10 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm4.60 mm0.81 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648465420
Side View
Table 67.0%Crown 46.8°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 67.4%

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: $672 SGD|Low: $160 SGD|High: $959 SGD|Avg: $418 SGD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 11$160 SGD
Retailer 6$185 SGD
Retailer 12$211 SGD
Retailer 5$229 SGD
Retailer 2$286 SGD
Retailer 16$303 SGD
Retailer 15$326 SGD
Retailer 9$329 SGD
Retailer 10$354 SGD
Retailer 3$380 SGD
Retailer 4$407 SGD
Retailer 13$504 SGD
Retailer 14$637 SGD
Friendly Diamonds$672 SGD
Retailer 7$788 SGD
Retailer 8$959 SGD

5 data points across 16 retailers

13 retailers$160 SGD to $672 SGD

A
Cheapest Retailer
-
$160 SGD
$125 USD
A
Retailer 2
-
$185 SGD
$145 USD
View
A
Retailer 3
-
$211 SGD
$165 USD
View
A
Retailer 4
-
$229 SGD
HK$1,400 HKD
View
A
Retailer 5
-
$286 SGD
£176 GBP
View
A
Retailer 6
-
$303 SGD
$237 USD
View
A
Retailer 7
-
$329 SGD
£202 GBP
View
A
Retailer 8
-
$354 SGD
€264 EUR
View
B+
Retailer 9
-
$380 SGD
$297 USD
View
B+
Retailer 10
-
$407 SGD
£251 GBP
View
B+
Retailer 11
-
$504 SGD
$394 USD
View
B
Retailer 12
-
$637 SGD
$498 USD
View
Most Expensive
B
Friendly Diamonds
6558455 · Oct 31
$672 SGD
$526 USD
View
12 more retailers have this diamond
Prices start from $160 SGDSave up to $513 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
0.81ct Radiant
$160 SGD