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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 2557576321

Certificate GIA 2557576321

Diamond specifications and retailer prices

From $5,715 SGD
$4,469 USD
As of November 2, 2026
Save $6,646 SGD (54%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $12,362 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 2557576321. Listed at 26 retailers as of October 30, 2026, with prices from $5,715 to $12,362, a $6,646 spread on the same certified stone. NZ Jewellers lists it at $12,362. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 2557576321
Dimensions9.46 × 6.05 × 3.92 mm
L/W Ratio1.56
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity
Top View
9.46 mm6.05 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2557576321
Side View
Table 63.0%Crown 37.9°Girdle: MED-VTKPavilionCulet: NoneDepth 64.8%

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 2
Current: $12,362 SGD|Low: $5,715 SGD|High: $12,362 SGD|Avg: $7,687 SGD|+10.4%
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
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 2, 2026
Retailer 7$5,715 SGD
Retailer 8$5,774 SGD
Retailer 3$5,839 SGD
Retailer 16$5,839 SGD
Retailer 25$5,913 SGD
Retailer 9$6,180 SGD
Retailer 18$6,279 SGD
Retailer 2$6,576 SGD
Retailer 11$6,625 SGD
Retailer 13$6,696 SGD
Retailer 24$6,696 SGD
Retailer 19$6,813 SGD
Retailer 4$6,870 SGD
Retailer 20$6,964 SGD
Retailer 14$7,094 SGD
Retailer 22$7,211 SGD
Retailer 10$7,315 SGD
Retailer 12$7,315 SGD
Retailer 5$7,389 SGD
Retailer 15$7,558 SGD
Retailer 6$7,726 SGD
Retailer 21$7,895 SGD
Retailer 17$10,706 SGD
Retailer 23$10,890 SGD
NZ Jewellers$12,362 SGD

20 data points across 25 retailers

26 retailers$5,715 SGD to $12,362 SGD

A
Cheapest Retailer
-
$5,715 SGD
$4,469 USD
A
Retailer 2
-
$5,774 SGD
$4,515 USD
View
A
Retailer 3
-
$5,839 SGD
$4,566 USD
View
A
Retailer 4
-
$5,839 SGD
$4,566 USD
View
A
Retailer 5
-
$5,913 SGD
$4,623 USD
View
A
Retailer 6
-
$6,088 SGD
A$7,323 AUD
View
A
Retailer 7
-
$6,180 SGD
$4,832 USD
View
Final sale: no returns
Retailer 8
-
$6,279 SGD
$4,910 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$6,576 SGD
CA$7,141 CAD
View
A
Retailer 10
-
$6,625 SGD
$5,180 USD
View
A
Retailer 11
-
$6,696 SGD
$5,236 USD
View
A
Retailer 12
-
$6,696 SGD
$5,236 USD
View
A
Retailer 13
-
$6,813 SGD
$5,327 USD
View
A
Retailer 14
-
$6,870 SGD
$5,372 USD
View
B+
Retailer 15
-
$6,964 SGD
£4,288 GBP
View
A
Retailer 16
-
$7,094 SGD
$5,547 USD
View
A
Retailer 17
-
$7,211 SGD
£4,439 GBP
View
A
Retailer 18
-
$7,315 SGD
$5,720 USD
View
A
Retailer 19
-
$7,315 SGD
$5,720 USD
View
A
Retailer 20
-
$7,389 SGD
$5,778 USD
View
B+
Retailer 21
-
$7,558 SGD
$5,910 USD
View
B+
Retailer 22
-
$7,726 SGD
$6,041 USD
View
B+
Retailer 23
-
$7,895 SGD
€5,879 EUR
View
B
Retailer 24
-
$10,706 SGD
$8,371 USD
View
B
Retailer 25
-
$10,890 SGD
£6,705 GBP
View
Most Expensive
B
NZ Jewellers
d2ab3c1f-a838-4bcb-bc8e-6cbec82ee8cc · Oct 30
$12,362 SGD
$9,666 USD
View
25 more retailers have this diamond
Prices start from $5,715 SGDSave up to $6,646 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
$5,715 SGD