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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

EX • M/SI1 • GIA 2556084481

Certificate GIA 2556084481

Diamond specifications and retailer prices

From $1,952 SGD
As of November 6, 2026
Save $2,157 SGD (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,372 SGD at NZ Jewellers · As of September 25, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556084481. Listed at 8 retailers as of November 6, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556084481
Dimensions8.94 × 6.36 × 4.04 mm
L/W Ratio1.41
Top View
8.94 mm6.36 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556084481
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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 6
Current: $4,109 SGD|Low: $1,952 SGD|High: $4,454 SGD|Avg: $3,086 SGD|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$1,952 SGD
Retailer 8$2,407 SGD
Retailer 6$2,593 SGD
Retailer 3$2,784 SGD
Retailer 4$2,826 SGD
Retailer 9$3,078 SGD
Retailer 2$3,428 SGD
Retailer 5$3,656 SGD
Retailer 1$4,109 SGD

30 data points across 9 retailers

8 retailers$1,952 SGD to $4,109 SGD

A
Cheapest Retailer
-
$1,952 SGD
A
Retailer 2
-
$2,593 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,784 SGD
View
A
Retailer 4
-
$2,826 SGD
View
B+
Retailer 5
-
$3,428 SGD
View
B+
Retailer 6
-
$3,656 SGD
View
B
Retailer 7
-
$4,109 SGD
View
Most Expensive
NZ Jewellers
4d8cfb91-c3d0-48b1-be66-8814a485524b · Sep 25
$6,372 SGD
$4,972 USD
View
Price last confirmed 42 days ago
7 more retailers have this diamond
Prices start from $1,952 SGDSave up to $2,157 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
$1,952 SGD