Oval|Natural|GIA

1.50ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 1428798393

Certificate GIA 1428798393

Diamond specifications and retailer prices

From $10,378 SGD
$8,115 USD
As of November 1, 2026
Save $8,465 SGD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,843 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded F 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 1428798393. Listed at 17 retailers as of October 30, 2026, with prices from $10,378 to $18,843, a $8,465 spread on the same certified stone. NZ Jewellers lists it at $18,843. 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

1.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428798393
Dimensions9.23 × 6.16 × 3.90 mm
L/W Ratio1.50
Top View
9.23 mm6.16 mm1.50 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1428798393
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,843 SGD|Low: $10,378 SGD|High: $18,843 SGD|Avg: $13,659 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
November 2, 2026
Retailer 9$10,378 SGD
Retailer 12$11,222 SGD
Retailer 11$11,400 SGD
Retailer 4$12,248 SGD
Retailer 5$12,364 SGD
Retailer 8$12,422 SGD
Retailer 10$12,436 SGD
Retailer 2$13,557 SGD
Retailer 3$14,132 SGD
Retailer 7$16,609 SGD
Retailer 6$17,657 SGD
NZ Jewellers$18,843 SGD

45 data points across 12 retailers

17 retailers$10,378 SGD to $18,843 SGD

B+
Cheapest Retailer
-
$10,378 SGD
$8,115 USD
B+
Retailer 2
-
$10,585 SGD
$8,277 USD
View
B+
Retailer 3
-
$11,222 SGD
$8,775 USD
View
B+
Retailer 4
-
$11,305 SGD
$8,840 USD
View
B+
Retailer 5
-
$11,400 SGD
$8,914 USD
View
B
Retailer 6
-
$12,248 SGD
$9,577 USD
View
B+
Retailer 7
-
$12,364 SGD
£7,612 GBP
View
Retailer 8
-
$12,422 SGD
A$14,943 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$12,436 SGD
$9,724 USD
View
B
Retailer 10
-
$13,339 SGD
$10,430 USD
View
B
Retailer 11
-
$13,339 SGD
$10,430 USD
View
B
Retailer 12
-
$13,557 SGD
€10,096 EUR
View
B
Retailer 13
-
$13,787 SGD
$10,780 USD
View
B
Retailer 14
-
$14,132 SGD
$11,050 USD
View
B
Retailer 15
-
$16,609 SGD
ZAR 209,809 ZAR
View
B
Retailer 16
-
$17,657 SGD
£10,871 GBP
View
Most Expensive
B
NZ Jewellers
b2927d36-a296-4b92-9ed9-890fce067f59 · Oct 30
$18,843 SGD
$14,734 USD
View
16 more retailers have this diamond
Prices start from $10,378 SGDSave up to $8,465 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+
1.50ct Oval
$10,378 SGD