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Radiant|Natural|GIA

1.31ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 6561542175

Certificate GIA 6561542175

Diamond specifications and retailer prices

From $9,189 NZD
As of November 6, 2026
Save $10,955 NZD (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $20,144 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D 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 6561542175. Listed at 24 retailers as of November 5, 2026, with prices from $9,189 to $20,144, a $10,955 spread on the same certified stone. NZ Jewellers lists it at $20,144. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.74°
Pavilion angle54.25°
OriginNatural
Grading LabGIA
CertificateGIA 6561542175
Dimensions7.60 × 5.38 × 3.70 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.60 mm5.38 mm1.31 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561542175
Side View
Table 62.0%Crown 47.74°Girdle: STK-STKPavilion 54.25°Culet: NoneDepth 68.8%

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 6
Current: $20,144 NZD|Low: $9,097 NZD|High: $20,144 NZD|Avg: $12,580 NZD
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
November 7, 2026
Retailer 18$9,189 NZD
Retailer 12$9,211 NZD
Retailer 17$10,003 NZD
Retailer 5$10,192 NZD
Retailer 19$10,684 NZD
Retailer 9$11,116 NZD
Retailer 6$11,175 NZD
Retailer 2$11,439 NZD
Retailer 13$11,684 NZD
Retailer 10$11,834 NZD
Retailer 4$12,045 NZD
Retailer 7$12,230 NZD
Retailer 11$12,330 NZD
Retailer 3$12,492 NZD
Retailer 14$13,085 NZD
Retailer 15$14,695 NZD
Retailer 8$17,447 NZD
Retailer 16$17,696 NZD
NZ Jewellers$20,144 NZD

23 data points across 19 retailers

24 retailers$9,189 NZD to $20,144 NZD

A
Cheapest Retailer
-
$9,189 NZD
A
Retailer 2
-
$9,211 NZD
View
B+
Retailer 3
-
$10,003 NZD
View
B+
Retailer 4
-
$10,161 NZD
View
B+
Retailer 5
-
$10,192 NZD
View
B+
Retailer 6
-
$10,504 NZD
View
B+
Retailer 7
-
$10,684 NZD
View
B+
Retailer 8
-
$11,116 NZD
View
Final sale: no returns
Retailer 9
-
$11,117 NZD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$11,175 NZD
View
B+
Retailer 11
-
$11,439 NZD
View
B+
Retailer 12
-
$11,684 NZD
View
B+
Retailer 13
-
$11,834 NZD
View
B+
Retailer 14
-
$12,045 NZD
View
B+
Retailer 15
-
$12,230 NZD
View
B
Retailer 16
-
$12,330 NZD
View
B
Retailer 17
-
$12,331 NZD
View
B+
Retailer 18
-
$12,492 NZD
View
B+
Retailer 19
-
$13,085 NZD
View
B
Retailer 20
-
$13,897 NZD
View
B
Retailer 21
-
$14,695 NZD
View
B
Retailer 22
-
$17,447 NZD
View
B
Retailer 23
-
$17,696 NZD
View
Most Expensive
B
NZ Jewellers
84cb34aa-0d74-4df5-a106-0b0c567a3de4 · Nov 5
$20,144 NZD
$11,167 USD
View
23 more retailers have this diamond
Prices start from $9,189 NZDSave up to $10,955 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
1.31ct Radiant
$9,189 NZD