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4.31ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG832602921

Shape and cutting style on the report: Round brilliant

Certificate IGI LG832602921

Diamond specifications and retailer prices

From $6,268 NZD
HK$27,600 HKD
As of October 31, 2026
Save $17,915 NZD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $24,184 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.31ct lab-grown round diamond

This 4.31ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG832602921 or 832602921. Listed at 13 retailers as of October 29, 2026, with prices from $6,268 to $24,184, a $17,915 spread on the same certified stone. Brilliant Earth lists it at $24,184. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.31
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG832602921
Dimensions10.59 × 10.62 × 6.31 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.59 mm10.62 mm4.31 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG832602921
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 59.5%

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 31
Current: $6,918 NZD|Low: $6,268 NZD|High: $19,877 NZD|Avg: $11,641 NZD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$6,268 NZD
Retailer 1$6,918 NZD
Retailer 11$7,736 NZD
Retailer 6$8,210 NZD
Retailer 7$9,026 NZD
Retailer 4$10,951 NZD
Retailer 3$13,459 NZD
Retailer 9$13,735 NZD
Retailer 5$13,847 NZD
Retailer 8$17,951 NZD
Retailer 2$19,877 NZD

23 data points across 11 retailers

13 retailers$6,268 NZD to $24,184 NZD

A
Cheapest Retailer
-
$6,268 NZD
HK$27,600 HKD
A
Retailer 2
-
$6,918 NZD
£3,070 GBP
View
A
Retailer 3
-
$7,736 NZD
$4,360 USD
View
A
Retailer 4
-
$8,210 NZD
€4,407 EUR
View
A
Retailer 5
-
$9,026 NZD
$5,087 USD
View
A
Retailer 6
-
$10,951 NZD
ZAR 99,708 ZAR
View
B+
Retailer 7
-
$13,459 NZD
$7,586 USD
View
B+
Retailer 8
-
$13,735 NZD
$7,741 USD
View
B+
Retailer 9
-
$13,847 NZD
£6,145 GBP
View
B+
Retailer 10
-
$15,294 NZD
$8,620 USD
View
B+
Retailer 11
-
$17,951 NZD
$10,117 USD
View
B
Retailer 12
-
$19,877 NZD
$11,203 USD
View
Most Expensive
B
Brilliant Earth
21765054A · Oct 29
$24,184 NZD
$13,630 USD
View
12 more retailers have this diamond
Prices start from $6,268 NZDSave up to $17,915 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
4.31ct Round
$6,268 NZD