Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1559169538

Certificate GIA 1559169538

Diamond specifications and retailer prices

From $8,121 SGD
$6,336 USD
As of October 27, 2026
15 retailers carry this diamond
Most expensive: $16,242 SGD at NZ Jewellers · As of October 9, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559169538. Listed at 15 retailers as of October 27, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.8°
Pavilion angle36.2°
OriginNatural
Grading LabGIA
CertificateGIA 1559169538
Dimensions8.69 × 6.48 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.69 mm6.48 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559169538
Side View
Table 61.0%Crown 39.8°Girdle: MED-THKPavilion 36.2°Culet: NDepth 62.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 27
Current: $9,761 SGD|Low: $7,101 SGD|High: $14,406 SGD|Avg: $9,477 SGD|+1.4%
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
October 16, 2026
Retailer 10$7,101 SGD
Retailer 16$7,202 SGD
Retailer 5$7,672 SGD
Retailer 3$7,809 SGD
Retailer 15$8,121 SGD
Retailer 11$8,152 SGD
Retailer 8$9,627 SGD
Retailer 1$9,761 SGD
Retailer 6$9,767 SGD
Retailer 13$9,767 SGD
Retailer 4$9,897 SGD
Retailer 7$10,087 SGD
Retailer 14$10,567 SGD
Retailer 2$10,798 SGD
Retailer 12$11,793 SGD
Retailer 9$13,678 SGD

27 data points across 16 retailers

15 retailers

Retailer 1
-
$7,101 SGD
$5,540 USD
Price last confirmed 15 days ago
Retailer 2
-
$7,202 SGD
HK$43,900 HKD
View
Price last confirmed 15 days ago
Retailer 3
-
$7,672 SGD
$5,986 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$7,809 SGD
$6,093 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$8,121 SGD
$6,336 USD
View
Final sale: no returns
Retailer 6
-
$8,121 SGD
$6,336 USD
View
Price last confirmed 18 days ago
Retailer 7
-
$8,798 SGD
$6,864 USD
View
Price last confirmed 23 days ago
Retailer 8
-
$9,090 SGD
$7,092 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$9,627 SGD
A$11,555 AUD
View
Price last confirmed 26 days ago
Retailer 10
-
$9,761 SGD
£5,996 GBP
View
Price last confirmed 14 days ago
Retailer 11
-
$9,897 SGD
$7,722 USD
View
Price last confirmed 16 days ago
Retailer 12
-
$10,151 SGD
$7,920 USD
View
Price last confirmed 21 days ago
Retailer 13
-
$11,793 SGD
ZAR 148,646 ZAR
View
Price last confirmed 18 days ago
Retailer 14
-
$13,678 SGD
£8,403 GBP
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
40ddab6c-7117-4ba7-8e3c-2fc771f8aefa · Oct 9
$16,242 SGD
$12,672 USD
View
Price last confirmed 21 days ago
14 more retailers have this diamond
Prices start from $8,121 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.

B+
1.51ct Oval
$8,121 SGD