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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 HK$4,075 HKD
As of November 6, 2026
Save HK$10,071 HKD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$23,291 HKD 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: HK$23,291 HKD|Low: HK$4,075 HKD|High: HK$23,630 HKD|Avg: HK$10,103 HKD|-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 2HK$4,075 HKD
Retailer 7HK$4,334 HKD
Retailer 12HK$4,851 HKD
Retailer 11HK$4,859 HKD
Retailer 8HK$5,376 HKD
Retailer 3HK$6,427 HKD
Retailer 10HK$8,300 HKD
Retailer 5HK$8,935 HKD
Retailer 6HK$13,880 HKD
Retailer 9HK$14,147 HKD
Retailer 4HK$21,608 HKD
MOH LondonHK$23,291 HKD

20 data points across 12 retailers

11 retailersHK$4,075 HKD to HK$14,147 HKD

B+
Cheapest Retailer
-
HK$4,075 HKD
B+
Retailer 2
-
HK$4,334 HKD
View
B
Retailer 3
-
HK$4,851 HKD
View
Final sale: no returns
B
Retailer 4
-
HK$4,859 HKD
View
Retailer 5
-
HK$5,376 HKD
View
Price last confirmed 22 days ago
B
Retailer 6
-
HK$5,376 HKD
View
B
Retailer 7
-
HK$8,300 HKD
View
B
Retailer 8
-
HK$8,935 HKD
View
C
Retailer 9
-
HK$13,880 HKD
View
C
Retailer 10
-
HK$14,147 HKD
View
Most Expensive
MOH London
LG407950377 · Nov 5
HK$23,291 HKD
£2,340 GBP
View
Price under review
10 more retailers have this diamond
Prices start from HK$4,075 HKDSave up to HK$10,071 HKD

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
HK$4,075 HKD