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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6455128223

Certificate GIA 6455128223

Diamond specifications and retailer prices

From $7,170 SGD
HK$43,800 HKD
As of November 1, 2026
Save $9,278 SGD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,448 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6455128223. Listed at 17 retailers as of October 30, 2026, with prices from $7,170 to $16,448, a $9,278 spread on the same certified stone. NZ Jewellers lists it at $16,448. 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

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6455128223
Dimensions8.76 × 6.24 × 4.03 mm
L/W Ratio1.40
Top View
8.76 mm6.24 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6455128223
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: 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: Nov 1
Current: $7,171 SGD|Low: $6,877 SGD|High: $13,871 SGD|Avg: $9,559 SGD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$7,170 SGD
Retailer 1$7,171 SGD
Retailer 5$8,203 SGD
Retailer 7$8,409 SGD
Retailer 8$9,076 SGD
Retailer 3$9,272 SGD
Retailer 9$9,986 SGD
Retailer 2$10,743 SGD
Retailer 4$13,705 SGD

36 data points across 9 retailers

17 retailers$7,170 SGD to $16,448 SGD

A
Cheapest Retailer
-
$7,170 SGD
HK$43,800 HKD
A
Retailer 2
-
$7,171 SGD
₹533,985 INR
View
Retailer 3
-
$8,184 SGD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$8,203 SGD
$6,414 USD
View
B+
Retailer 5
-
$8,397 SGD
$6,566 USD
View
B+
Retailer 6
-
$8,409 SGD
$6,575 USD
View
B+
Retailer 7
-
$9,076 SGD
$7,097 USD
View
Final sale: no returns
B+
Retailer 8
-
$9,078 SGD
$7,098 USD
View
B+
Retailer 9
-
$9,272 SGD
£5,708 GBP
View
B+
Retailer 10
-
$9,833 SGD
$7,689 USD
View
B+
Retailer 11
-
$9,986 SGD
$7,808 USD
View
B+
Retailer 12
-
$10,044 SGD
$7,853 USD
View
B+
Retailer 13
-
$10,743 SGD
€8,000 EUR
View
B+
Retailer 14
-
$11,346 SGD
$8,872 USD
View
B
Retailer 15
-
$13,705 SGD
£8,438 GBP
View
B
Retailer 16
-
$15,211 SGD
$11,894 USD
View
Most Expensive
B
NZ Jewellers
e2e0bffa-2620-4c99-98d0-a40ac2736498 · Oct 30
$16,448 SGD
$12,861 USD
View
16 more retailers have this diamond
Prices start from $7,170 SGDSave up to $9,278 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
1.51ct Oval
$7,170 SGD