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Round|Natural|GIA

1.23ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6555769796

Certificate GIA 6555769796

Diamond specifications and retailer prices

From $5,803 NZD
As of November 4, 2026
Save $5,584 NZD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,387 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555769796. Listed at 12 retailers as of November 4, 2026, with prices from $5,803 to $11,387, a $5,584 spread on the same certified stone. NZ Jewellers lists it at $11,387. 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

1.23
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555769796
Dimensions6.82 × 6.76 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.82 mm6.76 mm1.23 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555769796
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°CuletDepth 62.8%

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 4
Current: $11,387 NZD|Low: $5,634 NZD|High: $11,600 NZD|Avg: $7,653 NZD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$5,803 NZD
Retailer 3$6,032 NZD
Retailer 7$6,536 NZD
Retailer 9$6,536 NZD
Retailer 2$6,722 NZD
Retailer 8$6,788 NZD
Retailer 5$7,523 NZD
Retailer 10$7,541 NZD
Retailer 4$7,592 NZD
Retailer 6$10,899 NZD
NZ Jewellers$11,387 NZD

41 data points across 11 retailers

12 retailers$5,803 NZD to $11,387 NZD

A
Cheapest Retailer
-
$5,803 NZD
A
Retailer 2
-
$6,032 NZD
View
Final sale: no returns
Retailer 3
-
$6,536 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$6,536 NZD
View
A
Retailer 5
-
$6,722 NZD
View
B+
Retailer 6
-
$6,788 NZD
View
B+
Retailer 7
-
$7,523 NZD
View
B+
Retailer 8
-
$7,541 NZD
View
B+
Retailer 9
-
$7,592 NZD
View
Retailer 10
-
$7,824 NZD
View
Price last confirmed 70 days ago
B
Retailer 11
-
$10,899 NZD
View
Most Expensive
B
NZ Jewellers
fa709ad6-558f-4b7a-98ff-660f780ca4b6 · Nov 5
$11,387 NZD
$6,401 USD
View
11 more retailers have this diamond
Prices start from $5,803 NZDSave up to $5,584 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
1.23ct Round
$5,803 NZD