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Oval|Lab Grown|GIA

0.40ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • GIA 6552109765

Certificate GIA 6552109765

Diamond specifications and retailer prices

From $676 NZD
₹36,276 INR
As of November 1, 2026
Save $686 NZD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,098 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552109765. Listed at 13 retailers as of October 31, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6552109765
Dimensions5.96 × 4.12 × 2.50 mm
L/W Ratio1.45
Top View
5.96 mm4.12 mm0.40 ctD / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552109765
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,098 NZD|Low: $674 NZD|High: $4,746 NZD|Avg: $1,699 NZD|-55.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$676 NZD
Retailer 10$846 NZD
Retailer 12$869 NZD
Retailer 11$1,123 NZD
Retailer 4$1,137 NZD
Retailer 8$1,138 NZD
Retailer 5$1,142 NZD
Retailer 7$1,269 NZD
Retailer 9$1,362 NZD
Retailer 3$1,742 NZD
Retailer 6$1,839 NZD
MOH London$2,098 NZD

40 data points across 12 retailers

13 retailers$676 NZD to $1,362 NZD

B+
Cheapest Retailer
-
$676 NZD
₹36,276 INR
B
Retailer 2
-
$846 NZD
$477 USD
View
Retailer 3
-
$869 NZD
$490 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$1,015 NZD
$572 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$1,123 NZD
$633 USD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$1,138 NZD
£505 GBP
View
B
Retailer 7
-
$1,142 NZD
$644 USD
View
B
Retailer 8
-
$1,269 NZD
$715 USD
View
B
Retailer 9
-
$1,362 NZD
€731 EUR
View
Retailer 10
-
$1,742 NZD
$982 USD
View
Price under review
Retailer 11
-
$1,839 NZD
£816 GBP
View
Price under review
Most Expensive
MOH London
6DDE87F7B · Nov 1
$2,098 NZD
£931 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $676 NZDSave up to $686 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 Oval
$676 NZD