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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1525227984

Certificate GIA 1525227984

Diamond specifications and retailer prices

From $317 NZD
₹16,999 INR
As of November 1, 2026
Save $1,754 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,071 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural round diamond

This 0.31ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1525227984. Listed at 17 retailers as of October 30, 2026, with prices from $317 to $2,071, a $1,754 spread on the same certified stone. NZ Jewellers lists it at $2,071. 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

0.31
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1525227984
Dimensions4.35 × 4.33 × 2.71 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Feather, Crystal, Knot
Top View
4.35 mm4.33 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525227984
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.4%

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 1
Current: $2,071 NZD|Low: $317 NZD|High: $2,136 NZD|Avg: $692 NZD|-3.1%
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
November 2, 2026
Retailer 11$317 NZD
Retailer 5$386 NZD
Retailer 8$447 NZD
Retailer 14$452 NZD
Retailer 6$490 NZD
Retailer 4$495 NZD
Retailer 2$504 NZD
Retailer 7$599 NZD
Retailer 16$609 NZD
Retailer 15$679 NZD
Retailer 12$684 NZD
Retailer 9$699 NZD
Retailer 3$709 NZD
Retailer 10$883 NZD
Retailer 13$1,046 NZD
NZ Jewellers$2,071 NZD

23 data points across 16 retailers

17 retailers$317 NZD to $2,071 NZD

A
Cheapest Retailer
-
$317 NZD
₹16,999 INR
A
Retailer 2
-
$386 NZD
HK$1,700 HKD
View
Retailer 3
-
$447 NZD
$252 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$452 NZD
$255 USD
View
A
Retailer 5
-
$490 NZD
SGD 373 SGD
View
A
Retailer 6
-
$495 NZD
$279 USD
View
A
Retailer 7
-
$504 NZD
$284 USD
View
A
Retailer 8
-
$599 NZD
$338 USD
View
A
Retailer 9
-
$609 NZD
$343 USD
View
A
Retailer 10
-
$679 NZD
$383 USD
View
A
Retailer 11
-
$684 NZD
$385 USD
View
B+
Retailer 12
-
$699 NZD
£310 GBP
View
B+
Retailer 13
-
$709 NZD
ZAR 6,452 ZAR
View
Retailer 14
-
$780 NZD
A$676 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$883 NZD
€474 EUR
View
B+
Retailer 16
-
$1,046 NZD
£464 GBP
View
Most Expensive
B
NZ Jewellers
19204791-518a-418e-9a0e-e222d8f3a2dd · Oct 30
$2,071 NZD
$1,167 USD
View
16 more retailers have this diamond
Prices start from $317 NZDSave up to $1,754 NZD

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
0.31ct Round
$317 NZD