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Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

ID • H/SI2 • GIA 6551643504

Certificate GIA 6551643504

Diamond specifications and retailer prices

From $4,477 SGD
$3,502 USD
As of October 31, 2026
Save $6,157 SGD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,634 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551643504. Listed at 17 retailers as of October 30, 2026, with prices from $4,477 to $10,634, a $6,157 spread on the same certified stone. NZ Jewellers lists it at $10,634. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551643504
Dimensions8.86 × 6.30 × 3.97 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.86 mm6.30 mm1.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551643504
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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: $10,634 SGD|Low: $4,477 SGD|High: $10,898 SGD|Avg: $6,325 SGD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 15$4,477 SGD
Retailer 8$4,768 SGD
Retailer 5$4,982 SGD
Retailer 11$5,105 SGD
Retailer 16$5,501 SGD
Retailer 6$5,502 SGD
Retailer 3$5,529 SGD
Retailer 4$5,529 SGD
Retailer 17$5,529 SGD
Retailer 7$5,867 SGD
Retailer 2$5,913 SGD
Retailer 12$6,069 SGD
Retailer 10$6,332 SGD
Retailer 14$6,380 SGD
Retailer 9$7,568 SGD
Retailer 13$9,722 SGD
NZ Jewellers$10,634 SGD

25 data points across 17 retailers

17 retailers$4,477 SGD to $10,634 SGD

A
Cheapest Retailer
-
$4,477 SGD
$3,502 USD
A
Retailer 2
-
$4,768 SGD
$3,730 USD
View
A
Retailer 3
-
$4,982 SGD
$3,897 USD
View
A
Retailer 4
-
$5,105 SGD
$3,993 USD
View
Final sale: no returns
A
Retailer 5
-
$5,501 SGD
$4,303 USD
View
A
Retailer 6
-
$5,502 SGD
$4,304 USD
View
A
Retailer 7
-
$5,529 SGD
$4,325 USD
View
A
Retailer 8
-
$5,529 SGD
$4,325 USD
View
A
Retailer 9
-
$5,529 SGD
$4,325 USD
View
A
Retailer 10
-
$5,867 SGD
$4,589 USD
View
A
Retailer 11
-
$5,913 SGD
£3,642 GBP
View
A
Retailer 12
-
$6,069 SGD
£3,738 GBP
View
A
Retailer 13
-
$6,332 SGD
€4,717 EUR
View
A
Retailer 14
-
$6,380 SGD
$4,991 USD
View
B+
Retailer 15
-
$7,568 SGD
$5,920 USD
View
B+
Retailer 16
-
$9,722 SGD
£5,988 GBP
View
Most Expensive
B
NZ Jewellers
8c622049-9a61-49f9-ac51-2a589433ecd6 · Oct 30
$10,634 SGD
$8,318 USD
View
16 more retailers have this diamond
Prices start from $4,477 SGDSave up to $6,157 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
$4,477 SGD