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Oval|Natural|GIA

1.31ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1568583831

Certificate GIA 1568583831

Diamond specifications and retailer prices

From $4,975 AUD
HK$27,300 HKD
As of October 30, 2026
Save $7,359 AUD (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,334 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E 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 1568583831. Listed at 20 retailers as of October 30, 2026, with prices from $4,975 to $12,334, a $7,359 spread on the same certified stone. NZ Jewellers lists it at $12,334. 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

1.31
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568583831
Dimensions8.31 × 6.06 × 3.99 mm
L/W Ratio1.37
Girdle conditionFaceted
Top View
8.31 mm6.06 mm1.31 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568583831
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.9%

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: Oct 30
Current: $12,334 AUD|Low: $4,975 AUD|High: $12,334 AUD|Avg: $7,382 AUD|+2.0%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 3$4,975 AUD
Retailer 18$5,431 AUD
Retailer 13$5,755 AUD
Retailer 5$5,894 AUD
Retailer 4$6,063 AUD
Retailer 16$6,383 AUD
Retailer 14$6,416 AUD
Retailer 11$6,511 AUD
Retailer 8$6,534 AUD
Retailer 19$6,662 AUD
Retailer 9$6,669 AUD
Retailer 12$6,927 AUD
Retailer 2$7,109 AUD
Retailer 6$7,161 AUD
Retailer 17$7,605 AUD
Retailer 10$8,770 AUD
Retailer 7$10,321 AUD
Retailer 15$11,336 AUD
NZ Jewellers$12,334 AUD

8 data points across 19 retailers

20 retailers$4,975 AUD to $12,334 AUD

A
Cheapest Retailer
-
$4,975 AUD
HK$27,300 HKD
A
Retailer 2
-
$5,431 AUD
$3,815 USD
View
A
Retailer 3
-
$5,755 AUD
€3,850 EUR
View
A
Retailer 4
-
$5,865 AUD
$4,120 USD
View
A
Retailer 5
-
$5,894 AUD
View
A
Retailer 6
-
$6,063 AUD
$4,259 USD
View
A
Retailer 7
-
$6,383 AUD
$4,484 USD
View
A
Retailer 8
-
$6,416 AUD
£3,549 GBP
View
A
Retailer 9
-
$6,511 AUD
SGD 6,181 SGD
View
B+
Retailer 10
-
$6,534 AUD
$4,590 USD
View
Final sale: no returns
B+
Retailer 11
-
$6,662 AUD
$4,680 USD
View
A
Retailer 12
-
$6,669 AUD
$4,685 USD
View
B+
Retailer 13
-
$6,927 AUD
£3,831 GBP
View
B+
Retailer 14
-
$7,109 AUD
$4,994 USD
View
B+
Retailer 15
-
$7,161 AUD
$5,030 USD
View
B+
Retailer 16
-
$7,605 AUD
€5,088 EUR
View
B
Retailer 17
-
$8,770 AUD
ZAR 99,526 ZAR
View
B
Retailer 18
-
$10,321 AUD
$7,250 USD
View
B
Retailer 19
-
$11,336 AUD
£6,270 GBP
View
Most Expensive
B
NZ Jewellers
bef2a829-c458-42d4-93b7-da770fcbe308 · Oct 30
$12,334 AUD
$8,664 USD
View
19 more retailers have this diamond
Prices start from $4,975 AUDSave up to $7,359 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
1.31ct Oval
$4,975 AUD