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1.25ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6555813150

Certificate GIA 6555813150

Diamond specifications and retailer prices

From $10,889 NZD
As of November 4, 2026
Save $9,992 NZD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $20,881 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555813150. Listed at 9 retailers as of November 4, 2026, with prices from $10,889 to $20,881, a $9,992 spread on the same certified stone. NZ Jewellers lists it at $20,881. 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

1.25
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6555813150
Dimensions6.85 × 6.88 × 4.31 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Needle
Top View
6.85 mm6.88 mm1.25 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555813150
Side View
Table 58.0%Crown 35°GirdlePavilion 41.4°CuletDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $11,659 NZD|Low: $10,248 NZD|High: $18,168 NZD|Avg: $12,770 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$10,248 NZD
Retailer 4$10,889 NZD
Retailer 5$11,524 NZD
Retailer 1$11,659 NZD
Retailer 2$13,553 NZD
Retailer 3$17,903 NZD

37 data points across 6 retailers

9 retailers$10,889 NZD to $20,881 NZD

B+
Cheapest Retailer
-
$10,889 NZD
Retailer 2
-
$11,524 NZD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$11,659 NZD
View
B+
Retailer 4
-
$12,484 NZD
View
B
Retailer 5
-
$12,676 NZD
View
B
Retailer 6
-
$13,553 NZD
View
B
Retailer 7
-
$14,406 NZD
View
B
Retailer 8
-
$17,903 NZD
View
Most Expensive
B
NZ Jewellers
0b0fd54a-56a9-45de-b4bd-79a0249ff3cb · Nov 5
$20,881 NZD
$11,738 USD
View
8 more retailers have this diamond
Prices start from $10,889 NZDSave up to $9,992 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.

B+
1.25ct Round
$10,889 NZD