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Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 2536187901

Certificate GIA 2536187901

Diamond specifications and retailer prices

From $2,896 SGD
HK$17,700 HKD
As of October 31, 2026
Save $3,639 SGD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,889 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-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 2536187901. Listed at 22 retailers as of October 28, 2026, with a 126% 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536187901
Dimensions8.06 × 5.70 × 3.49 mm
L/W Ratio1.41
Top View
8.06 mm5.70 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536187901
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 61.2%

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 31
Current: $3,052 SGD|Low: $2,880 SGD|High: $6,559 SGD|Avg: $4,221 SGD|-2.2%
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
October 31, 2026
Retailer 8$2,896 SGD
Retailer 1$3,052 SGD
Retailer 14$3,383 SGD
Retailer 13$3,461 SGD
Retailer 2$3,482 SGD
Retailer 3$3,955 SGD
Retailer 9$4,034 SGD
Retailer 4$4,035 SGD
Retailer 5$4,104 SGD
Retailer 6$4,266 SGD
Retailer 10$4,416 SGD
Retailer 7$4,638 SGD
Retailer 11$6,345 SGD
Retailer 12$6,535 SGD

31 data points across 14 retailers

22 retailers$2,896 SGD to $6,535 SGD

A
Cheapest Retailer
-
$2,896 SGD
HK$17,700 HKD
A
Retailer 2
-
$3,052 SGD
₹227,387 INR
View
A
Retailer 3
-
$3,383 SGD
View
A
Retailer 4
-
$3,461 SGD
$2,707 USD
View
A
Retailer 5
-
$3,482 SGD
$2,724 USD
View
Final sale: no returns
A
Retailer 6
-
$3,610 SGD
$2,824 USD
View
A
Retailer 7
-
$3,611 SGD
$2,825 USD
View
Retailer 8
-
$3,774 SGD
$2,952 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$3,774 SGD
$2,952 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$3,829 SGD
A$4,608 AUD
View
Retailer 11
-
$3,918 SGD
$3,065 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$3,955 SGD
$3,094 USD
View
B+
Retailer 13
-
$4,034 SGD
£2,485 GBP
View
B+
Retailer 14
-
$4,035 SGD
View
B+
Retailer 15
-
$4,104 SGD
$3,210 USD
View
Retailer 16
-
$4,266 SGD
A$5,134 AUD
View
Price last confirmed 28 days ago
Retailer 17
-
$4,354 SGD
$3,406 USD
View
Price last confirmed 13 days ago
B+
Retailer 18
-
$4,416 SGD
€3,290 EUR
View
B+
Retailer 19
-
$4,638 SGD
ZAR 58,611 ZAR
View
B
Retailer 20
-
$6,345 SGD
£3,908 GBP
View
B
Retailer 21
-
$6,535 SGD
£4,025 GBP
View
Most Expensive
NZ Jewellers
7c4b89fd-f10d-464b-a153-0de68a46a52c · Oct 17
$7,889 SGD
$6,171 USD
View
Price last confirmed 14 days ago
21 more retailers have this diamond
Prices start from $2,896 SGDSave up to $3,639 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
1.00ct Oval
$2,896 SGD