Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6542034653

Certificate GIA 6542034653

Diamond specifications and retailer prices

From $8,731 SGD
$6,830 USD
As of October 30, 2026
Save $3,132 SGD (26%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,288 SGD at NZ Jewellers · As of September 19, 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 6542034653. Listed at 14 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
OriginNatural
Grading LabGIA
CertificateGIA 6542034653
Dimensions9.03 × 6.43 × 4.02 mm
L/W Ratio1.40
Top View
9.03 mm6.43 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542034653
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.5%

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: $19,288 SGD|Low: $8,251 SGD|High: $19,288 SGD|Avg: $11,757 SGD
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
October 23, 2026
Retailer 10$8,251 SGD
Retailer 8$8,731 SGD
Retailer 12$8,849 SGD
Retailer 11$9,325 SGD
Retailer 6$9,644 SGD
Retailer 2$10,410 SGD
Retailer 5$10,448 SGD
Retailer 9$11,480 SGD
Retailer 14$11,480 SGD
Retailer 15$11,864 SGD
Retailer 13$12,100 SGD
Retailer 3$12,509 SGD
Retailer 7$13,748 SGD
Retailer 4$16,159 SGD
NZ Jewellers$19,288 SGD

27 data points across 15 retailers

14 retailers$8,731 SGD to $11,864 SGD

Retailer 1
-
$8,251 SGD
$6,454 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$8,731 SGD
$6,830 USD
View
A
Retailer 3
-
$8,849 SGD
$6,922 USD
View
A
Retailer 4
-
$9,325 SGD
$7,294 USD
View
Final sale: no returns
Retailer 5
-
$9,644 SGD
$7,544 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$10,410 SGD
£6,412 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
$10,448 SGD
$8,173 USD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$11,480 SGD
$8,980 USD
View
B+
Retailer 9
-
$11,480 SGD
$8,980 USD
View
B+
Retailer 10
-
$11,864 SGD
$9,280 USD
View
Retailer 11
-
$12,055 SGD
$9,430 USD
View
Price last confirmed 39 days ago
Retailer 12
-
$12,100 SGD
$9,465 USD
View
Price last confirmed 10 days ago
Retailer 13
-
$16,159 SGD
£9,953 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
ebf27050-4f63-43a9-b8ea-3ce76ee6812a · Sep 19
$19,288 SGD
$15,088 USD
View
Price last confirmed 41 days ago
13 more retailers have this diamond
Prices start from $8,731 SGDSave up to $3,132 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
$8,731 SGD