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Oval|Natural|GIA

1.51ct E SI2 Oval Natural Diamond

ID • E/SI2 • GIA 6541240788

Certificate GIA 6541240788

Diamond specifications and retailer prices

From $6,333 SGD
HK$38,600 HKD
As of October 29, 2026
Save $6,409 SGD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,085 SGD at NZ Jewellers · As of September 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 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 6541240788. Listed at 20 retailers as of October 26, 2026, with a 101% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.35°
Pavilion angle36.93°
OriginNatural
Grading LabGIA
CertificateGIA 6541240788
Dimensions8.92 × 6.33 × 4.02 mm
L/W Ratio1.41
Top View
8.92 mm6.33 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541240788
Side View
Table 62.0%Crown 39.35°Girdle: STK-THKPavilion 36.93°Culet: NoneDepth 63.6%

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 29
Current: $8,077 SGD|Low: $6,333 SGD|High: $12,742 SGD|Avg: $8,257 SGD|-0.6%
Retailer 1
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
October 29, 2026
Retailer 6$6,333 SGD
Retailer 2$6,653 SGD
Retailer 8$6,718 SGD
Retailer 4$6,852 SGD
Retailer 17$7,042 SGD
Retailer 16$7,101 SGD
Retailer 9$7,444 SGD
Retailer 14$7,486 SGD
Retailer 5$7,526 SGD
Retailer 11$7,981 SGD
Retailer 1$8,077 SGD
Retailer 7$8,740 SGD
Retailer 15$9,126 SGD
Retailer 13$9,188 SGD
Retailer 10$9,285 SGD
Retailer 12$12,474 SGD
Retailer 3$12,742 SGD

32 data points across 17 retailers

20 retailers$6,333 SGD to $12,742 SGD

A
Cheapest Retailer
-
$6,333 SGD
HK$38,600 HKD
A
Retailer 2
-
$6,653 SGD
$5,191 USD
View
A
Retailer 3
-
$6,852 SGD
$5,346 USD
View
A
Retailer 4
-
$7,042 SGD
$5,494 USD
View
Final sale: no returns
A
Retailer 5
-
$7,101 SGD
$5,540 USD
View
Retailer 6
-
$7,444 SGD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$7,486 SGD
View
A
Retailer 8
-
$7,526 SGD
$5,872 USD
View
A
Retailer 9
-
$7,981 SGD
£4,903 GBP
View
A
Retailer 10
-
$8,077 SGD
£4,962 GBP
View
Retailer 11
-
$8,421 SGD
$6,570 USD
View
Price last confirmed 28 days ago
Retailer 12
-
$8,550 SGD
$6,671 USD
View
Price last confirmed 30 days ago
A
Retailer 13
-
$8,740 SGD
$6,819 USD
View
A
Retailer 14
-
$9,126 SGD
$7,120 USD
View
A
Retailer 15
-
$9,188 SGD
€6,827 EUR
View
B+
Retailer 16
-
$9,285 SGD
$7,244 USD
View
Retailer 17
-
$9,717 SGD
$7,581 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$12,474 SGD
£7,663 GBP
View
B
Retailer 19
-
$12,742 SGD
$9,941 USD
View
Most Expensive
NZ Jewellers
c1fcdd3b-bb6d-4228-b653-aa4a75263e19 · Sep 30
$14,085 SGD
$10,989 USD
View
Price last confirmed 29 days ago
19 more retailers have this diamond
Prices start from $6,333 SGDSave up to $6,409 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
$6,333 SGD