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Radiant|Lab Grown|IGI

0.31ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG657416911

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

Certificate IGI LG657416911

Diamond specifications and retailer prices

From $252 NZD
$142 USD
As of October 30, 2026
Save $1,370 NZD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,622 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown radiant diamond

This 0.31ct lab-grown radiant sits in the sub-half-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG657416911 or 657416911. Listed at 18 retailers as of October 29, 2026, with prices from $252 to $1,622, a $1,370 spread on the same certified stone. MOH London lists it at $1,622. 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

0.31
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657416911
Dimensions4.81 × 3.23 × 2.39 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.81 mm3.23 mm0.31 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG657416911
Side View
Table 60.0%Crown 47.5°Girdle: MediumPavilion 38.5°Culet: NoneDepth 74.0%

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: Oct 30
Current: $1,622 NZD|Low: $241 NZD|High: $1,631 NZD|Avg: $634 NZD|+0.4%
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 9$252 NZD
Retailer 4$282 NZD
Retailer 3$312 NZD
Retailer 12$312 NZD
Retailer 11$465 NZD
Retailer 10$532 NZD
Retailer 8$583 NZD
Retailer 2$600 NZD
Retailer 7$623 NZD
Retailer 5$666 NZD
Retailer 6$676 NZD
Retailer 13$1,109 NZD
MOH London$1,622 NZD

45 data points across 13 retailers

18 retailers$252 NZD to $1,622 NZD

A
Cheapest Retailer
-
$252 NZD
$142 USD
A
Retailer 2
-
$282 NZD
$159 USD
View
Final sale: no returns
B+
Retailer 3
-
$312 NZD
$176 USD
View
B+
Retailer 4
-
$312 NZD
$176 USD
View
B+
Retailer 5
-
$465 NZD
$262 USD
View
B+
Retailer 6
-
$532 NZD
$300 USD
View
B+
Retailer 7
-
$583 NZD
€313 EUR
View
B+
Retailer 8
-
$600 NZD
£266 GBP
View
B+
Retailer 9
-
$623 NZD
ZAR 5,676 ZAR
View
B
Retailer 10
-
$666 NZD
$375 USD
View
B
Retailer 11
-
$676 NZD
£300 GBP
View
B
Retailer 12
-
$818 NZD
£363 GBP
View
B
Retailer 13
-
$916 NZD
CA$717 CAD
View
B
Retailer 14
-
$1,081 NZD
$609 USD
View
B
Retailer 15
-
$1,109 NZD
$625 USD
View
C
Retailer 16
-
$1,418 NZD
$799 USD
View
C
Retailer 17
-
$1,418 NZD
$799 USD
View
Most Expensive
B
MOH London
LG657416911 · Oct 29
$1,622 NZD
£720 GBP
View
17 more retailers have this diamond
Prices start from $252 NZDSave up to $1,370 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.

A
0.31ct Radiant
$252 NZD