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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6561316825

Certificate GIA 6561316825

Diamond specifications and retailer prices

From $387 NZD
₹20,797 INR
As of November 1, 2026
Save $836 NZD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,418 NZD at NZ Jewellers · As of October 23, 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 6561316825. Listed at 17 retailers as of November 1, 2026, with a 216% 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

0.31
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561316825
Dimensions4.34 × 4.32 × 2.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
4.34 mm4.32 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561316825
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°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: $2,418 NZD|Low: $387 NZD|High: $2,418 NZD|Avg: $797 NZD|+11.3%
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 10$387 NZD
Retailer 6$449 NZD
Retailer 3$477 NZD
Retailer 13$490 NZD
Retailer 8$566 NZD
Retailer 4$580 NZD
Retailer 12$615 NZD
Retailer 7$630 NZD
Retailer 9$669 NZD
Retailer 5$719 NZD
Retailer 14$765 NZD
Retailer 15$779 NZD
Retailer 16$828 NZD
Retailer 2$909 NZD
Retailer 11$1,224 NZD
NZ Jewellers$2,418 NZD

26 data points across 16 retailers

17 retailers$387 NZD to $1,224 NZD

A
Cheapest Retailer
-
$387 NZD
₹20,797 INR
A
Retailer 2
-
$449 NZD
$253 USD
View
A
Retailer 3
-
$477 NZD
HK$2,100 HKD
View
A
Retailer 4
-
$490 NZD
$276 USD
View
Final sale: no returns
Retailer 5
-
$566 NZD
$319 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$580 NZD
SGD 442 SGD
View
A
Retailer 7
-
$615 NZD
A$534 AUD
View
Retailer 8
-
$630 NZD
$355 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$669 NZD
£297 GBP
View
Retailer 10
-
$719 NZD
$405 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$765 NZD
$431 USD
View
B+
Retailer 12
-
$779 NZD
$439 USD
View
B+
Retailer 13
-
$828 NZD
ZAR 7,537 ZAR
View
Retailer 14
-
$895 NZD
A$776 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$909 NZD
€488 EUR
View
B
Retailer 16
-
$1,224 NZD
£543 GBP
View
Most Expensive
NZ Jewellers
42869dcb-cb0e-4621-99dc-c76e31ff19b6 · Oct 23
$2,418 NZD
$1,363 USD
View
Price under review
16 more retailers have this diamond
Prices start from $387 NZDSave up to $836 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
$387 NZD