Oval|Natural|GIA

1.50ct F SI1 Oval Natural Diamond

ID • F/SI1 • GIA 6551643708

Certificate GIA 6551643708

Diamond specifications and retailer prices

From $9,533 SGD

£5,870 GBP

As of October 28, 2026

17 retailers carry this diamond

Most expensive: $17,328 SGD at NZ Jewellers · As of September 19, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551643708. Listed at 17 retailers as of October 28, 2026. 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

1.50

Carat

Colour

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6551643708

Dimensions8.81 × 6.31 × 4.00 mm

L/W Ratio1.40

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Feather, Crystal, Indented Natural, Needle, Pinpoint, Cloud, Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 6551643708

Side View

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: Oct 28

Current: $9,533 SGD|Low: $7,763 SGD|High: $14,613 SGD|Avg: $10,147 SGD|-1.3%

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

October 28, 2026

Retailer 4$7,883 SGD

Retailer 11$8,186 SGD

Retailer 10$8,663 SGD

Retailer 6$8,665 SGD

Retailer 5$8,677 SGD

Retailer 2$9,303 SGD

Retailer 1$9,533 SGD

Retailer 8$9,724 SGD

Retailer 3$9,924 SGD

Retailer 14$9,928 SGD

Retailer 9$11,260 SGD

Retailer 7$12,615 SGD

Retailer 12$12,879 SGD

Retailer 13$14,459 SGD

31 data points across 14 retailers

17 retailers

Retailer 1

$7,883 SGD

$6,164 USD

Price last confirmed 12 days ago

Retailer 2

$8,186 SGD

$6,401 USD

View

Price last confirmed 8 days ago

Retailer 3

$8,677 SGD

$6,785 USD

View

Price last confirmed 6 days ago

Retailer 4

$9,226 SGD

$7,214 USD

View

Price last confirmed 9 days ago

Retailer 5

$9,303 SGD

$7,275 USD

View

Price last confirmed 10 days ago

Retailer 6

$9,386 SGD

$7,339 USD

View

Price last confirmed 44 days ago

B+

Retailer 7

$9,533 SGD

£5,870 GBP

View

Retailer 8

$9,724 SGD

£5,987 GBP

View

Price last confirmed 7 days ago

Retailer 9

$9,924 SGD

$7,760 USD

View

Price last confirmed 17 days ago

Retailer 10

$9,928 SGD

A$11,943 AUD

View

Price last confirmed 12 days ago

Retailer 11

$10,476 SGD

$8,191 USD

View

Price last confirmed 7 days ago

Retailer 12

$10,830 SGD

$8,468 USD

View

Price last confirmed 45 days ago

Retailer 13

$11,260 SGD

€8,385 EUR

View

Price last confirmed 7 days ago

Retailer 14

$12,615 SGD

ZAR 159,349 ZAR

View

Price last confirmed 7 days ago

Retailer 15

$12,879 SGD

$10,070 USD

View

Price last confirmed 7 days ago

Retailer 16

$14,459 SGD

£8,902 GBP

View

Price last confirmed 7 days ago

Most Expensive

NZ Jewellers

6fce348c-e558-47a0-864b-183a4a9177ac · Sep 19

$17,328 SGD

$13,549 USD

View

Price last confirmed 44 days ago

16 more retailers have this diamond

Prices start from $9,533 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.

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1.50ct Oval

$9,533 SGD