Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1525227984

Certificate GIA 1525227984

Diamond specifications and retailer prices

From $181 USD
₹17,252 INR
As of October 30, 2026
Save $986 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,167 USD 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 $181 to $1,167, a $986 spread on the same certified stone. NZ Jewellers lists it at $1,167. 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
Color
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: Oct 30
Current: $1,167 USD|Low: $181 USD|High: $1,222 USD|Avg: $400 USD|-4.5%
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
October 30, 2026
Retailer 2$181 USD
Retailer 4$218 USD
Retailer 8$252 USD
Retailer 15$259 USD
Retailer 5$276 USD
Retailer 13$279 USD
Retailer 16$289 USD
Retailer 12$323 USD
Retailer 7$338 USD
Retailer 6$348 USD
Retailer 10$386 USD
Retailer 11$388 USD
Retailer 9$399 USD
Retailer 3$505 USD
Retailer 14$601 USD
NZ Jewellers$1,167 USD

22 data points across 16 retailers

17 retailers$181 USD to $1,167 USD

A
Cheapest Retailer
-
$181 USD
₹17,252 INR
A
Retailer 2
-
$218 USD
HK$1,700 HKD
View
A
Retailer 3
-
$252 USD
View
A
Retailer 4
-
$259 USD
View
A
Retailer 5
-
$276 USD
SGD 373 SGD
View
A
Retailer 6
-
$279 USD
View
A
Retailer 7
-
$289 USD
View
A
Retailer 8
-
$323 USD
£254 GBP
View
A
Retailer 9
-
$338 USD
View
A
Retailer 10
-
$348 USD
View
A
Retailer 11
-
$386 USD
View
A
Retailer 12
-
$388 USD
View
B+
Retailer 13
-
$399 USD
ZAR 6,452 ZAR
View
Retailer 14
-
$439 USD
A$676 AUD
View
Price last confirmed 26 days ago
B+
Retailer 15
-
$505 USD
€481 EUR
View
B
Retailer 16
-
$601 USD
£473 GBP
View
Most Expensive
B
NZ Jewellers
19204791-518a-418e-9a0e-e222d8f3a2dd · Oct 30
$1,167 USD
View
16 more retailers have this diamond
Prices start from $181 USDSave up to $986 USD

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
$181 USD