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Round|Lab Grown|IGI

4.31ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG776690494

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776690494

Diamond specifications and retailer prices

From $3,285 NZD
£1,458 GBP
As of November 1, 2026
Save $20,757 NZD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $24,042 NZD at Brilliant Earth · As of October 31, 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 LG776690494 or 776690494. Listed at 21 retailers as of October 31, 2026, with prices from $3,285 to $24,042, a $20,757 spread on the same certified stone. Brilliant Earth lists it at $24,042. 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 angle34.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776690494
Dimensions10.41 × 10.44 × 6.46 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.41 mm10.44 mm4.31 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776690494
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 1
Current: $5,772 NZD|Low: $3,283 NZD|High: $22,817 NZD|Avg: $8,504 NZD|-15.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 15$3,285 NZD
Retailer 2$3,316 NZD
Retailer 9$3,609 NZD
Retailer 11$3,714 NZD
Retailer 4$3,847 NZD
Retailer 18$4,143 NZD
Retailer 7$4,386 NZD
Retailer 1$5,772 NZD
Retailer 6$5,837 NZD
Retailer 13$6,027 NZD
Retailer 19$6,098 NZD
Retailer 10$6,710 NZD
Retailer 17$9,040 NZD
Retailer 14$9,098 NZD
Retailer 20$10,367 NZD
Retailer 12$11,521 NZD
Retailer 5$14,561 NZD
Retailer 8$14,856 NZD
Retailer 16$19,232 NZD
Retailer 3$22,817 NZD

34 data points across 20 retailers

21 retailers$3,285 NZD to $24,042 NZD

A+
Cheapest Retailer
-
$3,285 NZD
£1,458 GBP
A
Retailer 2
-
$3,316 NZD
$1,869 USD
View
A
Retailer 3
-
$3,609 NZD
$2,034 USD
View
A
Retailer 4
-
$3,714 NZD
$2,093 USD
View
Final sale: no returns
A
Retailer 5
-
$3,847 NZD
$2,168 USD
View
A
Retailer 6
-
$4,143 NZD
$2,335 USD
View
A
Retailer 7
-
$4,386 NZD
$2,472 USD
View
A
Retailer 8
-
$5,772 NZD
£2,562 GBP
View
A
Retailer 9
-
$5,837 NZD
$3,290 USD
View
A
Retailer 10
-
$6,027 NZD
$3,397 USD
View
A
Retailer 11
-
$6,098 NZD
$3,437 USD
View
A
Retailer 12
-
$6,710 NZD
$3,782 USD
View
A
Retailer 13
-
$9,040 NZD
ZAR 82,309 ZAR
View
A
Retailer 14
-
$9,098 NZD
A$7,889 AUD
View
A
Retailer 15
-
$10,367 NZD
$5,843 USD
View
B+
Retailer 16
-
$11,521 NZD
£5,113 GBP
View
B+
Retailer 17
-
$14,561 NZD
SGD 11,090 SGD
View
B+
Retailer 18
-
$14,856 NZD
$8,373 USD
View
B+
Retailer 19
-
$19,232 NZD
A$16,676 AUD
View
B
Retailer 20
-
$22,817 NZD
$12,860 USD
View
Most Expensive
B
Brilliant Earth
22137943Y · Oct 31
$24,042 NZD
$13,550 USD
View
20 more retailers have this diamond
Prices start from $3,285 NZDSave up to $20,757 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
$3,285 NZD