Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6542053783

Certificate GIA 6542053783

Diamond specifications and retailer prices

From $10,648 SGD
₹791,219 INR
As of October 29, 2026
Save $7,663 SGD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $19,437 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542053783. Listed at 21 retailers as of October 29, 2026, with a 72% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.99°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6542053783
Dimensions9.18 × 6.38 × 4.06 mm
L/W Ratio1.44
Top View
9.18 mm6.38 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542053783
Side View
Table 59.0%Crown 34.99°Girdle: THK-VTKPavilion 40°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: $12,758 SGD|Low: $10,628 SGD|High: $18,433 SGD|Avg: $13,547 SGD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$10,648 SGD
Retailer 11$11,763 SGD
Retailer 3$11,944 SGD
Retailer 1$12,758 SGD
Retailer 9$12,872 SGD
Retailer 10$12,943 SGD
Retailer 7$14,169 SGD
Retailer 6$14,672 SGD
Retailer 2$15,326 SGD
Retailer 8$16,935 SGD
Retailer 5$18,311 SGD

33 data points across 11 retailers

21 retailers$10,648 SGD to $18,311 SGD

A
Cheapest Retailer
-
$10,648 SGD
₹791,219 INR
B+
Retailer 2
-
$11,763 SGD
$9,178 USD
View
B+
Retailer 3
-
$11,801 SGD
$9,207 USD
View
B+
Retailer 4
-
$11,944 SGD
$9,319 USD
View
B+
Retailer 5
-
$12,172 SGD
$9,497 USD
View
B+
Retailer 6
-
$12,734 SGD
$9,935 USD
View
B+
Retailer 7
-
$12,758 SGD
£7,838 GBP
View
B
Retailer 8
-
$12,872 SGD
$10,043 USD
View
Final sale: no returns
Retailer 9
-
$12,873 SGD
$10,044 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$12,943 SGD
A$15,536 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$13,920 SGD
$10,860 USD
View
Retailer 12
-
$13,946 SGD
$10,881 USD
View
Price last confirmed 37 days ago
Retailer 13
-
$13,946 SGD
$10,881 USD
View
Price last confirmed 21 days ago
B
Retailer 14
-
$14,169 SGD
$11,054 USD
View
B+
Retailer 15
-
$14,672 SGD
€10,902 EUR
View
B
Retailer 16
-
$15,326 SGD
$11,957 USD
View
Retailer 17
-
$16,092 SGD
$12,555 USD
View
Price last confirmed 20 days ago
Retailer 18
-
$16,092 SGD
$12,555 USD
View
Price last confirmed 37 days ago
Retailer 19
-
$16,935 SGD
ZAR 213,455 ZAR
View
Price last confirmed 17 days ago
B
Retailer 20
-
$18,311 SGD
£11,249 GBP
View
Most Expensive
NZ Jewellers
c1c1720f-1bfa-4368-bb32-1914ca9ab0ec · Sep 30
$19,437 SGD
$15,165 USD
View
Price last confirmed 29 days ago
20 more retailers have this diamond
Prices start from $10,648 SGDSave up to $7,663 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
$10,648 SGD