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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 $1,111 NZD
$626 USD
As of November 1, 2026
Save $4,232 NZD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,343 NZD 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 November 1, 2026, with prices from $1,111 to $5,343, a $4,232 spread on the same certified stone. MOH London lists it at $5,343. 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: Nov 1
Current: $5,343 NZD|Low: $793 NZD|High: $5,406 NZD|Avg: $2,097 NZD
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$992 NZD
Retailer 3$1,111 NZD
Retailer 4$1,111 NZD
Retailer 11$1,231 NZD
Retailer 5$1,352 NZD
Retailer 7$1,464 NZD
Retailer 6$1,792 NZD
Retailer 13$1,895 NZD
Retailer 2$1,920 NZD
Retailer 8$2,715 NZD
Retailer 9$3,176 NZD
Retailer 12$3,236 NZD
MOH London$5,343 NZD

44 data points across 13 retailers

14 retailers$1,111 NZD to $5,343 NZD

Retailer 1
-
$992 NZD
$559 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$1,111 NZD
$626 USD
View
Final sale: no returns
Retailer 3
-
$1,111 NZD
$626 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$1,231 NZD
$694 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$1,352 NZD
$762 USD
View
B
Retailer 6
-
$1,464 NZD
$825 USD
View
B
Retailer 7
-
$1,792 NZD
€962 EUR
View
B
Retailer 8
-
$1,895 NZD
$1,068 USD
View
B
Retailer 9
-
$1,920 NZD
£852 GBP
View
B
Retailer 10
-
$2,715 NZD
$1,530 USD
View
B
Retailer 11
-
$2,814 NZD
£1,249 GBP
View
B
Retailer 12
-
$3,176 NZD
$1,790 USD
View
Retailer 13
-
$3,236 NZD
$1,824 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG515211457 · Nov 1
$5,343 NZD
£2,371 GBP
View
13 more retailers have this diamond
Prices start from $1,111 NZDSave up to $4,232 NZD

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
$1,111 NZD