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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 $891 AUD
$626 USD
As of October 30, 2026
Save $3,396 AUD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,287 AUD 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 $891 to $4,287, a $3,396 spread on the same certified stone. MOH London lists it at $4,287. 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: $4,287 AUD|Low: $636 AUD|High: $4,337 AUD|Avg: $1,683 AUD
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 10$796 AUD
Retailer 3$891 AUD
Retailer 4$891 AUD
Retailer 11$988 AUD
Retailer 5$1,085 AUD
Retailer 7$1,174 AUD
Retailer 6$1,438 AUD
Retailer 13$1,520 AUD
Retailer 2$1,540 AUD
Retailer 8$2,178 AUD
Retailer 9$2,548 AUD
Retailer 12$2,597 AUD
MOH London$4,287 AUD

44 data points across 13 retailers

14 retailers$891 AUD to $4,287 AUD

Retailer 1
-
$796 AUD
$559 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$891 AUD
$626 USD
View
Final sale: no returns
Retailer 3
-
$891 AUD
$626 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$988 AUD
$694 USD
View
B+
Retailer 5
-
$1,085 AUD
$762 USD
View
B
Retailer 6
-
$1,174 AUD
$825 USD
View
B
Retailer 7
-
$1,438 AUD
€962 EUR
View
B
Retailer 8
-
$1,520 AUD
$1,068 USD
View
B
Retailer 9
-
$1,540 AUD
£852 GBP
View
Retailer 10
-
$2,178 AUD
$1,530 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$2,258 AUD
£1,249 GBP
View
B
Retailer 12
-
$2,548 AUD
$1,790 USD
View
B
Retailer 13
-
$2,597 AUD
$1,824 USD
View
Most Expensive
B
MOH London
LG515211457 · Nov 1
$4,287 AUD
£2,371 GBP
View
13 more retailers have this diamond
Prices start from $891 AUDSave up to $3,396 AUD

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
$891 AUD