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Oval|Natural|GIA

0.40ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7488072215

Certificate GIA 7488072215

Diamond specifications and retailer prices

From HK$2,777 HKD
$354 USD
As of October 31, 2026
Save HK$3,639 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$10,639 HKD at NZ Jewellers · As of October 30, 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 J 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 7488072215. Listed at 18 retailers as of October 26, 2026, with a 131% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7488072215
Dimensions5.89 × 4.01 × 2.58 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.89 mm4.01 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7488072215
Side View
Table 56.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 64.5%

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: HK$5,618 HKD|Low: HK$3,099 HKD|High: HK$6,487 HKD|Avg: HK$4,384 HKD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9HK$3,099 HKD
Retailer 7HK$3,381 HKD
Retailer 2HK$3,569 HKD
Retailer 4HK$4,304 HKD
Retailer 8HK$4,446 HKD
Retailer 5HK$4,472 HKD
Retailer 3HK$5,124 HKD
Retailer 1HK$5,618 HKD
Retailer 6HK$6,417 HKD

37 data points across 9 retailers

18 retailersHK$2,777 HKD to HK$6,417 HKD

A
Cheapest Retailer
-
HK$2,777 HKD
$354 USD
B+
Retailer 2
-
HK$2,920 HKD
SGD 503 SGD
View
B+
Retailer 3
-
HK$2,989 HKD
$381 USD
View
B+
Retailer 4
-
HK$3,099 HKD
$395 USD
View
B+
Retailer 5
-
HK$3,280 HKD
$418 USD
View
B+
Retailer 6
-
HK$3,381 HKD
$431 USD
View
B+
Retailer 7
-
HK$3,569 HKD
£358 GBP
View
B
Retailer 8
-
HK$3,735 HKD
$476 USD
View
B
Retailer 9
-
HK$3,801 HKD
$484 USD
View
B+
Retailer 10
-
HK$3,954 HKD
$504 USD
View
B
Retailer 11
-
HK$4,019 HKD
$512 USD
View
B
Retailer 12
-
HK$4,304 HKD
ZAR 8,862 ZAR
View
Retailer 13
-
HK$4,446 HKD
A$872 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
HK$4,472 HKD
$570 USD
View
B
Retailer 15
-
HK$5,124 HKD
€622 EUR
View
B
Retailer 16
-
HK$5,618 HKD
£564 GBP
View
B
Retailer 17
-
HK$6,417 HKD
£644 GBP
View
Most Expensive
NZ Jewellers
31b79f22-11ce-47dc-b61d-e0e62e2e7811 · Oct 30
HK$10,639 HKD
$1,356 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$2,777 HKDSave up to HK$3,639 HKD

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
HK$2,777 HKD