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Oval|Natural|GIA

1.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 7546998099

Certificate GIA 7546998099

Diamond specifications and retailer prices

From $2,217 AUD
As of November 6, 2026
Save $2,960 AUD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,704 AUD at NZ Jewellers · As of October 23, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546998099. Listed at 8 retailers as of November 4, 2026, with a 134% 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546998099
Dimensions8.94 × 6.39 × 3.99 mm
L/W Ratio1.40
Girdle conditionFaceted
Key to symbols
Crystal, Needle
Top View
8.94 mm6.39 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546998099
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,704 AUD|Low: $2,198 AUD|High: $6,704 AUD|Avg: $3,796 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$2,217 AUD
Retailer 2$2,273 AUD
Retailer 6$2,975 AUD
Retailer 8$3,206 AUD
Retailer 9$3,345 AUD
Retailer 7$3,355 AUD
Retailer 3$3,688 AUD
Retailer 4$5,177 AUD
NZ Jewellers$6,704 AUD

46 data points across 9 retailers

8 retailers$2,217 AUD to $5,177 AUD

A
Cheapest Retailer
-
$2,217 AUD
A
Retailer 2
-
$2,273 AUD
View
Retailer 3
-
$3,206 AUD
View
Price last confirmed 15 days ago
Retailer 4
-
$3,345 AUD
View
Price last confirmed 12 days ago
Retailer 5
-
$3,355 AUD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$3,688 AUD
View
A
Retailer 7
-
$5,177 AUD
View
Most Expensive
NZ Jewellers
173db3fc-fdb2-4388-9c2d-331449b58671 · Oct 23
$6,704 AUD
$4,606 USD
View
Price last confirmed 13 days ago
7 more retailers have this diamond
Prices start from $2,217 AUDSave up to $2,960 AUD

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
$2,217 AUD