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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 1555356497

Certificate GIA 1555356497

Diamond specifications and retailer prices

From $2,847 SGD
HK$17,400 HKD
As of October 31, 2026
Save $4,818 SGD (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,665 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555356497. Listed at 12 retailers as of October 30, 2026, with prices from $2,847 to $7,665, a $4,818 spread on the same certified stone. NZ Jewellers lists it at $7,665. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555356497
Dimensions9.57 × 6.34 × 3.99 mm
L/W Ratio1.51
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.57 mm6.34 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555356497
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.9%

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: $7,665 SGD|Low: $2,815 SGD|High: $7,778 SGD|Avg: $4,167 SGD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5$2,847 SGD
Retailer 2$2,911 SGD
Retailer 11$3,385 SGD
Retailer 7$3,588 SGD
Retailer 4$3,603 SGD
Retailer 9$3,666 SGD
Retailer 8$3,808 SGD
Retailer 12$3,949 SGD
Retailer 3$3,958 SGD
Retailer 6$4,230 SGD
Retailer 10$6,140 SGD
NZ Jewellers$7,665 SGD

35 data points across 12 retailers

12 retailers$2,847 SGD to $7,665 SGD

A
Cheapest Retailer
-
$2,847 SGD
HK$17,400 HKD
A
Retailer 2
-
$2,911 SGD
₹216,844 INR
View
A
Retailer 3
-
$3,385 SGD
$2,648 USD
View
Final sale: no returns
A
Retailer 4
-
$3,588 SGD
£2,210 GBP
View
A
Retailer 5
-
$3,603 SGD
$2,818 USD
View
A
Retailer 6
-
$3,666 SGD
$2,868 USD
View
A
Retailer 7
-
$3,808 SGD
$2,979 USD
View
A
Retailer 8
-
$3,949 SGD
$3,089 USD
View
A
Retailer 9
-
$3,958 SGD
View
A
Retailer 10
-
$4,230 SGD
$3,309 USD
View
A
Retailer 11
-
$6,140 SGD
£3,782 GBP
View
Most Expensive
B+
NZ Jewellers
df3f3558-a934-4f9b-8a24-f837e4552cf4 · Oct 30
$7,665 SGD
$5,996 USD
View
11 more retailers have this diamond
Prices start from $2,847 SGDSave up to $4,818 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
$2,847 SGD