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0.40ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LGY-24910

Certificate IGI LGY-24910

Diamond specifications and retailer prices

From $763 NZD
$430 USD
As of October 31, 2026
Save $534 NZD (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,297 NZD at Fonder Diamond · As of October 31, 2026
View at Fonder Diamond

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LGY-24910 or Y-24910. Listed at 2 retailers as of October 31, 2026, with prices from $763 to $1,297, a $534 spread on the same certified stone. Fonder Diamond lists it at $1,297. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGY-24910
Dimensions4.82 × 4.84 mm
L/W Ratio1.00
Top View
4.82 mm4.84 mm0.40 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGY-24910
Side View
Table 61.0%CrownGirdle: THN - MEDPavilionCulet: NDepth 58.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,297 NZD|Low: $590 NZD|High: $2,305 NZD|Avg: $1,282 NZD|-0.4%
Fonder Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 13, 2026
Retailer 2$590 NZD
Retailer 3$763 NZD
Retailer 5$1,277 NZD
Fonder Diamond$1,297 NZD
Retailer 6$1,451 NZD
Retailer 4$2,305 NZD

4 data points across 6 retailers

2 retailers$763 NZD to $1,297 NZD

B
Cheapest Retailer
-
$763 NZD
$430 USD
Most Expensive
B
Fonder Diamond
96932507 · Oct 31
$1,297 NZD
SGD 988 SGD
View
1 more retailer has this diamond
Prices start from $763 NZDSave up to $534 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
0.40ct Round
$763 NZD