Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 5536608119

Certificate GIA 5536608119

Diamond specifications and retailer prices

From $8,582 SGD
$6,713 USD
As of October 30, 2026
Save $3,090 SGD (26%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,332 SGD at NZ Jewellers · As of October 20, 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 D 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 5536608119. Listed at 17 retailers as of October 30, 2026, with a 36% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.92°
Pavilion angle39.91°
OriginNatural
Grading LabGIA
CertificateGIA 5536608119
Dimensions9.00 × 6.51 × 4.03 mm
L/W Ratio1.38
Top View
9.00 mm6.51 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536608119
Side View
Table 59.0%Crown 37.92°Girdle: MED-THKPavilion 39.91°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $18,332 SGD|Low: $8,110 SGD|High: $18,970 SGD|Avg: $11,390 SGD|-3.4%
NZ Jewellers
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
Retailer 18
October 30, 2026
Retailer 5$8,110 SGD
Retailer 13$8,482 SGD
Retailer 4$8,582 SGD
Retailer 2$8,703 SGD
Retailer 18$9,165 SGD
Retailer 17$9,166 SGD
Retailer 3$9,929 SGD
Retailer 15$10,083 SGD
Retailer 12$10,229 SGD
Retailer 7$11,301 SGD
Retailer 16$11,301 SGD
Retailer 8$11,457 SGD
Retailer 6$11,672 SGD
Retailer 11$11,894 SGD
Retailer 9$12,293 SGD
Retailer 10$13,521 SGD
Retailer 14$15,357 SGD
NZ Jewellers$18,332 SGD

35 data points across 18 retailers

17 retailers$8,582 SGD to $11,672 SGD

Retailer 1
-
$8,110 SGD
$6,344 USD
Price last confirmed 8 days ago
Retailer 2
-
$8,482 SGD
$6,635 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$8,582 SGD
$6,713 USD
View
A
Retailer 4
-
$8,703 SGD
$6,808 USD
View
A
Retailer 5
-
$9,165 SGD
$7,169 USD
View
Final sale: no returns
Retailer 6
-
$9,166 SGD
$7,170 USD
View
Price last confirmed 14 days ago
Retailer 7
-
$9,929 SGD
$7,767 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$10,083 SGD
$7,887 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$10,229 SGD
£6,300 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$11,301 SGD
$8,840 USD
View
B+
Retailer 11
-
$11,301 SGD
$8,840 USD
View
Retailer 12
-
$11,457 SGD
$8,962 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$11,672 SGD
$9,130 USD
View
Retailer 14
-
$11,894 SGD
€8,861 EUR
View
Price last confirmed 7 days ago
Retailer 15
-
$12,293 SGD
$9,616 USD
View
Price last confirmed 9 days ago
Retailer 16
-
$15,357 SGD
£9,459 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
2fbdf712-2a41-43b6-b8fd-b1f921c12a5a · Oct 20
$18,332 SGD
$14,340 USD
View
Price last confirmed 10 days ago
16 more retailers have this diamond
Prices start from $8,582 SGDSave up to $3,090 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
$8,582 SGD