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Oval|Natural|GIA

1.51ct E SI2 Oval Natural Diamond

EX • E/SI2 • GIA 6555675807

Certificate GIA 6555675807

Diamond specifications and retailer prices

From $4,626 SGD
HK$28,200 HKD
As of October 24, 2026
Save $2,420 SGD (34%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,094 SGD at NZ Jewellers · As of October 17, 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 E 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 6555675807. Listed at 9 retailers as of October 24, 2026, with a 52% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle37.08°
OriginNatural
Grading LabGIA
CertificateGIA 6555675807
Dimensions8.84 × 6.34 × 4.12 mm
L/W Ratio1.39
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.84 mm6.34 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555675807
Side View
Table 57.0%CrownGirdle: MED-THKPavilion 37.08°Culet: NoneDepth 64.9%

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 24
Current: $11,094 SGD|Low: $4,626 SGD|High: $11,585 SGD|Avg: $7,329 SGD|-4.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 21, 2026
Retailer 7$4,626 SGD
Retailer 2$5,611 SGD
Retailer 9$5,943 SGD
Retailer 3$6,028 SGD
Retailer 6$6,369 SGD
Retailer 8$6,369 SGD
Retailer 10$7,046 SGD
Retailer 4$7,273 SGD
Retailer 5$10,196 SGD
NZ Jewellers$11,094 SGD

33 data points across 10 retailers

9 retailers$4,626 SGD to $7,046 SGD

A
Cheapest Retailer
-
$4,626 SGD
HK$28,200 HKD
A
Retailer 2
-
$5,611 SGD
$4,378 USD
View
A
Retailer 3
-
$5,943 SGD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$6,028 SGD
£3,703 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
$6,369 SGD
$4,969 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$6,369 SGD
$4,969 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$7,046 SGD
A$8,458 AUD
View
B+
Retailer 8
-
$10,196 SGD
£6,264 GBP
View
Price last confirmed 10 days ago
Most Expensive
B+
NZ Jewellers
0adffb2b-0a48-4c46-8185-57525483dd4f · Oct 17
$11,094 SGD
$8,656 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $4,626 SGDSave up to $2,420 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
$4,626 SGD