Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 7551878141

Certificate GIA 7551878141

Diamond specifications and retailer prices

From $8,090 AUD

€5,412 EUR

As of October 24, 2026

11 retailers carry this diamond

Most expensive: $11,530 AUD at Wholesale Diamonds Direct · As of October 23, 2026

View at Wholesale Diamonds Direct

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 7551878141. Listed at 11 retailers as of October 24, 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

1.51

Carat

Colour

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

Crown angle39.34°

Pavilion angle39.99°

OriginNatural

Grading LabGIA

CertificateGIA 7551878141

Dimensions8.91 × 6.40 × 4.02 mm

L/W Ratio1.39

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 7551878141

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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Price History

Last verified: Oct 24

Current: $8,090 AUD|Low: $6,361 AUD|High: $12,567 AUD|Avg: $8,318 AUD|-5.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Wholesale Diamonds Direct

October 24, 2026

Retailer 2$6,361 AUD

Retailer 4$6,401 AUD

Retailer 5$6,506 AUD

Retailer 3$6,655 AUD

Retailer 10$6,861 AUD

Retailer 7$7,065 AUD

Retailer 6$7,885 AUD

Retailer 8$7,890 AUD

Retailer 1$8,090 AUD

Retailer 9$10,844 AUD

Wholesale Diamonds Direct$11,530 AUD

37 data points across 11 retailers