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Radiant|Lab Grown|IGI

1.76ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG515211457

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

Certificate IGI LG515211457

Diamond specifications and retailer prices

From HK$4,911 HKD
$626 USD
As of October 30, 2026
Save HK$18,713 HKD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$23,625 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.76ct lab-grown radiant diamond

This 1.76ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG515211457 or 515211457. Listed at 14 retailers as of October 30, 2026, with prices from HK$4,911 to HK$23,625, a HK$18,713 spread on the same certified stone. MOH London lists it at HK$23,625. 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

1.76
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515211457
Dimensions7.75 × 5.95 × 4.11 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.75 mm5.95 mm1.76 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515211457
Side View
Table 65.5%Crown 46.5°Girdle: Slightly ThickPavilion 30°Culet: NoneDepth 69.1%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: HK$23,625 HKD|Low: HK$3,507 HKD|High: HK$23,904 HKD|Avg: HK$9,275 HKD
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
November 1, 2026
Retailer 10HK$4,386 HKD
Retailer 3HK$4,911 HKD
Retailer 4HK$4,911 HKD
Retailer 11HK$5,445 HKD
Retailer 5HK$5,978 HKD
Retailer 7HK$6,473 HKD
Retailer 6HK$7,925 HKD
Retailer 13HK$8,379 HKD
Retailer 2HK$8,489 HKD
Retailer 8HK$12,004 HKD
Retailer 9HK$14,044 HKD
Retailer 12HK$14,311 HKD
MOH LondonHK$23,625 HKD

44 data points across 13 retailers

14 retailersHK$4,911 HKD to HK$23,625 HKD

Retailer 1
-
HK$4,386 HKD
$559 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
HK$4,911 HKD
$626 USD
View
Final sale: no returns
Retailer 3
-
HK$4,911 HKD
$626 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
HK$5,445 HKD
$694 USD
View
B+
Retailer 5
-
HK$5,978 HKD
$762 USD
View
B
Retailer 6
-
HK$6,473 HKD
$825 USD
View
B
Retailer 7
-
HK$7,925 HKD
€962 EUR
View
B
Retailer 8
-
HK$8,379 HKD
$1,068 USD
View
B
Retailer 9
-
HK$8,489 HKD
£852 GBP
View
Retailer 10
-
HK$12,004 HKD
$1,530 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
HK$12,443 HKD
£1,249 GBP
View
B
Retailer 12
-
HK$14,044 HKD
$1,790 USD
View
B
Retailer 13
-
HK$14,311 HKD
$1,824 USD
View
Most Expensive
B
MOH London
LG515211457 · Nov 1
HK$23,625 HKD
£2,371 GBP
View
13 more retailers have this diamond
Prices start from HK$4,911 HKDSave up to HK$18,713 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+
1.76ct Radiant
HK$4,911 HKD