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Round|Natural|GIA

1.31ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 6552354747

Certificate GIA 6552354747

Diamond specifications and retailer prices

From $3,300 AUD
As of November 6, 2026
Save $504 AUD (13%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,192 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552354747. Listed at 7 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552354747
Dimensions6.95 × 7.00 × 4.34 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Twinning Wisp, Cloud, Needle
Top View
6.95 mm7.00 mm1.31 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552354747
Side View
Table 57.0%Crown 35.5°GirdlePavilion 40.8°CuletDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,804 AUD|Low: $3,300 AUD|High: $4,066 AUD|Avg: $3,558 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$3,300 AUD
Retailer 2$3,306 AUD
Retailer 5$3,343 AUD
Retailer 4$3,378 AUD
Retailer 6$3,440 AUD
Retailer 1$3,804 AUD
Retailer 7$4,066 AUD

40 data points across 7 retailers

7 retailers$3,300 AUD to $3,804 AUD

B+
Cheapest Retailer
-
$3,300 AUD
B+
Retailer 2
-
$3,306 AUD
View
B+
Retailer 3
-
$3,343 AUD
View
B+
Retailer 4
-
$3,378 AUD
View
Retailer 5
-
$3,440 AUD
View
Price last confirmed 41 days ago
B
Retailer 6
-
$3,804 AUD
View
Most Expensive
NZ Jewellers
56f036bf-3f8a-41e2-a777-3fe6736f3900 · Sep 28
$7,192 AUD
$5,035 USD
View
Price last confirmed 39 days ago
6 more retailers have this diamond
Prices start from $3,300 AUDSave up to $504 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.

B+
1.31ct Round
$3,300 AUD