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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG786681221

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

Certificate IGI LG786681221

Diamond specifications and retailer prices

From HK$1,074 HKD
As of November 6, 2026
Save HK$9,995 HKD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$11,068 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG786681221 or 786681221. Listed at 13 retailers as of November 5, 2026, with prices from HK$1,074 to HK$11,068, a HK$9,995 spread on the same certified stone. MOH London lists it at HK$11,068. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786681221
Dimensions7.51 × 4.85 × 3.16 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm4.85 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786681221
Side View
Table 65.0%Crown 37.5°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 65.2%

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: Nov 6
Current: HK$11,068 HKD|Low: HK$1,019 HKD|High: HK$11,158 HKD|Avg: HK$3,309 HKD|+0.9%
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
Retailer 14
November 6, 2026
Retailer 13HK$1,074 HKD
Retailer 9HK$1,246 HKD
Retailer 4HK$1,332 HKD
Retailer 5HK$1,340 HKD
Retailer 2HK$2,234 HKD
Retailer 11HK$2,437 HKD
Retailer 6HK$2,453 HKD
Retailer 14HK$2,484 HKD
Retailer 3HK$2,524 HKD
Retailer 12HK$3,253 HKD
Retailer 7HK$3,409 HKD
Retailer 8HK$4,271 HKD
Retailer 10HK$4,514 HKD
MOH LondonHK$11,068 HKD

45 data points across 14 retailers

13 retailersHK$1,074 HKD to HK$11,068 HKD

A
Cheapest Retailer
-
HK$1,074 HKD
A
Retailer 2
-
HK$1,246 HKD
View
A
Retailer 3
-
HK$1,332 HKD
View
Retailer 4
-
HK$1,340 HKD
View
Price last confirmed 13 days ago
A
Retailer 5
-
HK$2,234 HKD
View
A
Retailer 6
-
HK$2,437 HKD
View
A
Retailer 7
-
HK$2,484 HKD
View
A
Retailer 8
-
HK$2,524 HKD
View
B+
Retailer 9
-
HK$3,253 HKD
View
B+
Retailer 10
-
HK$3,409 HKD
View
B+
Retailer 11
-
HK$4,271 HKD
View
B
Retailer 12
-
HK$4,514 HKD
View
Most Expensive
B
MOH London
LG786681221 · Nov 5
HK$11,068 HKD
£1,112 GBP
View
12 more retailers have this diamond
Prices start from HK$1,074 HKDSave up to HK$9,995 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.

A
1.00ct Radiant
HK$1,074 HKD