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Oval|Natural|GIA

0.40ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6565136646

Certificate GIA 6565136646

Diamond specifications and retailer prices

From $377 SGD
₹28,118 INR
As of October 30, 2026
Save $840 SGD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,011 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565136646. Listed at 18 retailers as of October 29, 2026, with a 223% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565136646
Dimensions6.02 × 4.10 × 2.55 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
6.02 mm4.10 mm0.40 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565136646
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.2%

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: $2,011 SGD|Low: $375 SGD|High: $2,011 SGD|Avg: $784 SGD
NZ Jewellers
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
November 1, 2026
Retailer 11$377 SGD
Retailer 5$496 SGD
Retailer 3$524 SGD
Retailer 4$537 SGD
Retailer 14$565 SGD
Retailer 15$565 SGD
Retailer 9$605 SGD
Retailer 2$643 SGD
Retailer 6$793 SGD
Retailer 10$813 SGD
Retailer 7$840 SGD
Retailer 8$846 SGD
Retailer 12$1,065 SGD
Retailer 13$1,218 SGD
NZ Jewellers$2,011 SGD

31 data points across 15 retailers

18 retailers$377 SGD to $1,218 SGD

A
Cheapest Retailer
-
$377 SGD
₹28,118 INR
B+
Retailer 2
-
$496 SGD
$388 USD
View
B+
Retailer 3
-
$524 SGD
$410 USD
View
B+
Retailer 4
-
$537 SGD
$420 USD
View
B+
Retailer 5
-
$565 SGD
$442 USD
View
B+
Retailer 6
-
$565 SGD
$442 USD
View
B+
Retailer 7
-
$605 SGD
$473 USD
View
B+
Retailer 8
-
$643 SGD
£396 GBP
View
B
Retailer 9
-
$692 SGD
$541 USD
View
Retailer 10
-
$742 SGD
£457 GBP
View
Price last confirmed 36 days ago
B
Retailer 11
-
$750 SGD
$587 USD
View
B
Retailer 12
-
$793 SGD
$620 USD
View
B
Retailer 13
-
$813 SGD
ZAR 10,278 ZAR
View
Retailer 14
-
$840 SGD
A$1,011 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$846 SGD
€630 EUR
View
B
Retailer 16
-
$1,065 SGD
£656 GBP
View
B
Retailer 17
-
$1,218 SGD
£750 GBP
View
Most Expensive
NZ Jewellers
12c901cb-4a4c-4cf4-9af5-fa6bf8b54a0d · Oct 27
$2,011 SGD
$1,573 USD
View
Price under review
17 more retailers have this diamond
Prices start from $377 SGDSave up to $840 SGD

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
0.40ct Oval
$377 SGD