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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 5523685084

Certificate GIA 5523685084

Diamond specifications and retailer prices

From $8,582 SGD
$6,713 USD
As of October 30, 2026
Save $9,750 SGD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,332 SGD at NZ Jewellers · As of October 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 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 5523685084. Listed at 19 retailers as of October 30, 2026, with prices from $8,582 to $18,332, a $9,750 spread on the same certified stone. NZ Jewellers lists it at $18,332. 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 angle39.45°
Pavilion angle39.69°
OriginNatural
Grading LabGIA
CertificateGIA 5523685084
Dimensions8.96 × 6.47 × 3.99 mm
L/W Ratio1.38
Top View
8.96 mm6.47 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5523685084
Side View
Table 60.0%Crown 39.45°Girdle: MED-THKPavilion 39.69°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: $10,188 SGD|Low: $8,582 SGD|High: $15,460 SGD|Avg: $11,141 SGD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$8,582 SGD
Retailer 6$9,166 SGD
Retailer 8$9,763 SGD
Retailer 5$9,929 SGD
Retailer 1$10,188 SGD
Retailer 3$11,957 SGD
Retailer 7$13,066 SGD
Retailer 2$15,357 SGD

40 data points across 8 retailers

19 retailers$8,582 SGD to $18,332 SGD

A
Cheapest Retailer
-
$8,582 SGD
$6,713 USD
A
Retailer 2
-
$9,166 SGD
$7,170 USD
View
A
Retailer 3
-
$9,243 SGD
$7,230 USD
View
B+
Retailer 4
-
$9,763 SGD
$7,637 USD
View
Retailer 5
-
$9,929 SGD
$7,767 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$9,929 SGD
$7,767 USD
View
B+
Retailer 7
-
$10,083 SGD
$7,887 USD
View
A
Retailer 8
-
$10,188 SGD
£6,275 GBP
View
Retailer 9
-
$11,457 SGD
$8,962 USD
View
Price last confirmed 59 days ago
Retailer 10
-
$11,457 SGD
$8,962 USD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
$11,457 SGD
$8,962 USD
View
B+
Retailer 12
-
$11,506 SGD
$9,000 USD
View
B+
Retailer 13
-
$11,506 SGD
$9,000 USD
View
B+
Retailer 14
-
$11,889 SGD
$9,300 USD
View
B+
Retailer 15
-
$11,957 SGD
€8,908 EUR
View
B
Retailer 16
-
$15,357 SGD
£9,459 GBP
View
Retailer 17
-
$18,332 SGD
$14,340 USD
View
Price last confirmed 61 days ago
Retailer 18
-
$18,332 SGD
$14,340 USD
View
Price last confirmed 32 days ago
Most Expensive
B
NZ Jewellers
7d405e4f-bf1f-46b4-b4d2-295327d99e14 · Oct 30
$18,332 SGD
$14,340 USD
View
18 more retailers have this diamond
Prices start from $8,582 SGDSave up to $9,750 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