Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6455128223

Certificate GIA 6455128223

Diamond specifications and retailer prices

From $5,606 USD
HK$43,800 HKD
As of November 1, 2026
Save $7,255 USD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,861 USD 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 $5,606 to $12,861, a $7,255 spread on the same certified stone. NZ Jewellers lists it at $12,861. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,607 USD|Low: $5,377 USD|High: $10,846 USD|Avg: $7,474 USD|-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$5,606 USD
Retailer 1$5,607 USD
Retailer 5$6,414 USD
Retailer 7$6,575 USD
Retailer 8$7,097 USD
Retailer 3$7,250 USD
Retailer 9$7,808 USD
Retailer 2$8,400 USD
Retailer 4$10,716 USD

36 data points across 9 retailers

17 retailers$5,606 USD to $12,861 USD

A
Cheapest Retailer
-
$5,606 USD
HK$43,800 HKD
A
Retailer 2
-
$5,607 USD
₹533,985 INR
View
Retailer 3
-
$6,400 USD
SGD 8,648 SGD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$6,414 USD
View
B+
Retailer 5
-
$6,566 USD
View
B+
Retailer 6
-
$6,575 USD
View
B+
Retailer 7
-
$7,097 USD
View
Final sale: no returns
B+
Retailer 8
-
$7,098 USD
View
B+
Retailer 9
-
$7,250 USD
£5,708 GBP
View
B+
Retailer 10
-
$7,689 USD
View
B+
Retailer 11
-
$7,808 USD
View
B+
Retailer 12
-
$7,853 USD
View
B+
Retailer 13
-
$8,400 USD
€8,000 EUR
View
B+
Retailer 14
-
$8,872 USD
View
B
Retailer 15
-
$10,716 USD
£8,438 GBP
View
B
Retailer 16
-
$11,894 USD
View
Most Expensive
B
NZ Jewellers
e2e0bffa-2620-4c99-98d0-a40ac2736498 · Oct 30
$12,861 USD
View
16 more retailers have this diamond
Prices start from $5,606 USDSave up to $7,255 USD

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
$5,606 USD