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Radiant|Lab Grown|IGI

0.87ct I SI1 Radiant Lab Grown Diamond

VG • I/SI1 • IGI LG407950377

Shape and cutting style on the report: Radiant cut

Certificate IGI LG407950377

Diamond specifications and retailer prices

From $666 SGD
As of November 6, 2026
Save $1,647 SGD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,809 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 0.87ct lab-grown radiant diamond

This 0.87ct lab-grown radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407950377 or 407950377. Listed at 11 retailers as of November 6, 2026, with a 247% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.87
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle43.6°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950377
Dimensions6.16 × 4.83 × 3.17 mm
L/W Ratio1.28
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.16 mm4.83 mm0.87 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407950377
Side View
Table 68.0%Crown 43.6°Girdle: Slightly ThickPavilion 30.8°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,809 SGD|Low: $666 SGD|High: $3,864 SGD|Avg: $1,652 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$666 SGD
Retailer 7$709 SGD
Retailer 12$793 SGD
Retailer 11$795 SGD
Retailer 8$879 SGD
Retailer 3$1,051 SGD
Retailer 10$1,357 SGD
Retailer 5$1,461 SGD
Retailer 6$2,270 SGD
Retailer 9$2,313 SGD
Retailer 4$3,533 SGD
MOH London$3,809 SGD

20 data points across 12 retailers

11 retailers$666 SGD to $2,313 SGD

B+
Cheapest Retailer
-
$666 SGD
B+
Retailer 2
-
$709 SGD
View
B
Retailer 3
-
$793 SGD
View
Final sale: no returns
B
Retailer 4
-
$795 SGD
View
Retailer 5
-
$879 SGD
View
Price last confirmed 22 days ago
B
Retailer 6
-
$879 SGD
View
B
Retailer 7
-
$1,357 SGD
View
B
Retailer 8
-
$1,461 SGD
View
C
Retailer 9
-
$2,270 SGD
View
C
Retailer 10
-
$2,313 SGD
View
Most Expensive
MOH London
LG407950377 · Nov 5
$3,809 SGD
£2,340 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $666 SGDSave up to $1,647 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.

B+
0.87ct Radiant
$666 SGD