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Oval|Natural|GIA

1.30ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 5556218175

Certificate GIA 5556218175

Diamond specifications and retailer prices

From $1,768 AUD
As of November 6, 2026
Save $2,342 AUD (57%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,111 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556218175. Listed at 4 retailers as of November 4, 2026, with prices from $1,768 to $4,111, a $2,342 spread on the same certified stone. MOH London lists it at $4,111. 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

1.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556218175
Dimensions8.92 × 5.94 × 3.72 mm
L/W Ratio1.50
Girdle conditionSlightly Thick to Thick
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
8.92 mm5.94 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556218175
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.6%

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: $4,111 AUD|Low: $1,751 AUD|High: $4,649 AUD|Avg: $2,770 AUD|-10.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$1,768 AUD
Retailer 4$1,770 AUD
Retailer 5$2,326 AUD
Retailer 3$2,998 AUD
MOH London$4,111 AUD

46 data points across 5 retailers

4 retailers$1,768 AUD to $4,111 AUD

A
Cheapest Retailer
-
$1,768 AUD
A
Retailer 2
-
$1,770 AUD
View
A
Retailer 3
-
$2,998 AUD
View
Most Expensive
B+
MOH London
A946D8081 · Nov 4
$4,111 AUD
£2,224 GBP
View
3 more retailers have this diamond
Prices start from $1,768 AUDSave up to $2,342 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
1.30ct Oval
$1,768 AUD