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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 5436230726

Certificate GIA 5436230726

Diamond specifications and retailer prices

From $7,331 SGD
HK$44,800 HKD
As of November 1, 2026
Save $9,354 SGD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,684 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5436230726. Listed at 19 retailers as of October 30, 2026, with prices from $7,331 to $16,684, a $9,354 spread on the same certified stone. NZ Jewellers lists it at $16,684. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5436230726
Dimensions8.65 × 6.39 × 3.97 mm
L/W Ratio1.35
Top View
8.65 mm6.39 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5436230726
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.1%

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: $10,897 SGD|Low: $6,972 SGD|High: $14,070 SGD|Avg: $10,024 SGD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$7,331 SGD
Retailer 11$7,792 SGD
Retailer 2$8,343 SGD
Retailer 9$8,348 SGD
Retailer 3$9,176 SGD
Retailer 4$9,405 SGD
Retailer 10$9,618 SGD
Retailer 1$10,897 SGD
Retailer 8$10,992 SGD
Retailer 6$12,257 SGD
Retailer 5$13,903 SGD

42 data points across 11 retailers

19 retailers$7,331 SGD to $16,684 SGD

B+
Cheapest Retailer
-
$7,331 SGD
HK$44,800 HKD
B+
Retailer 2
-
$7,792 SGD
$6,095 USD
View
B
Retailer 3
-
$8,343 SGD
$6,526 USD
View
B
Retailer 4
-
$8,343 SGD
$6,526 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,348 SGD
$6,530 USD
View
B
Retailer 6
-
$8,412 SGD
$6,580 USD
View
B
Retailer 7
-
$9,037 SGD
$7,069 USD
View
B
Retailer 8
-
$9,176 SGD
$7,178 USD
View
B
Retailer 9
-
$9,405 SGD
£5,793 GBP
View
Retailer 10
-
$9,618 SGD
A$11,574 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$9,892 SGD
$7,738 USD
View
B
Retailer 12
-
$10,010 SGD
$7,830 USD
View
B
Retailer 13
-
$10,010 SGD
$7,830 USD
View
B
Retailer 14
-
$10,342 SGD
$8,090 USD
View
B
Retailer 15
-
$10,428 SGD
$8,157 USD
View
B
Retailer 16
-
$10,897 SGD
€8,118 EUR
View
B
Retailer 17
-
$12,257 SGD
ZAR 154,887 ZAR
View
B
Retailer 18
-
$13,903 SGD
£8,563 GBP
View
Most Expensive
C
NZ Jewellers
085bec04-f988-43f7-91dc-f6504d0faaee · Oct 30
$16,684 SGD
$13,051 USD
View
18 more retailers have this diamond
Prices start from $7,331 SGDSave up to $9,354 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.

B+
1.51ct Oval
$7,331 SGD