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Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2527585822

Certificate GIA 2527585822

Diamond specifications and retailer prices

From $6,087 NZD
$3,425 USD
As of November 1, 2026
Save $6,316 NZD (51%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,566 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2527585822. Listed at 21 retailers as of November 1, 2026, with a 104% 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

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2527585822
Dimensions6.82 × 6.80 × 4.22 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.82 mm6.80 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2527585822
Side View
Table 58.0%Crown 34.5°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 62.1%

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: $7,493 NZD|Low: $5,426 NZD|High: $12,552 NZD|Avg: $8,423 NZD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$6,087 NZD
Retailer 4$6,458 NZD
Retailer 8$6,512 NZD
Retailer 1$7,493 NZD
Retailer 3$7,917 NZD
Retailer 6$8,299 NZD
Retailer 9$8,306 NZD
Retailer 5$9,572 NZD
Retailer 2$12,403 NZD

42 data points across 9 retailers

21 retailers$6,087 NZD to $12,403 NZD

A
Cheapest Retailer
-
$6,087 NZD
$3,425 USD
A
Retailer 2
-
$6,208 NZD
$3,493 USD
View
A
Retailer 3
-
$6,458 NZD
A$5,591 AUD
View
A
Retailer 4
-
$6,512 NZD
$3,664 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,727 NZD
$3,785 USD
View
B+
Retailer 6
-
$6,931 NZD
$3,900 USD
View
Retailer 7
-
$7,054 NZD
$3,969 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$7,054 NZD
$3,969 USD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
$7,493 NZD
£3,319 GBP
View
B+
Retailer 10
-
$7,917 NZD
£3,507 GBP
View
B+
Retailer 11
-
$7,962 NZD
$4,480 USD
View
B+
Retailer 12
-
$7,962 NZD
$4,480 USD
View
Retailer 13
-
$8,140 NZD
$4,580 USD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
$8,201 NZD
$4,614 USD
View
B+
Retailer 15
-
$8,229 NZD
$4,630 USD
View
B+
Retailer 16
-
$8,299 NZD
€4,447 EUR
View
Retailer 17
-
$8,306 NZD
A$7,190 AUD
View
Price last confirmed 24 days ago
Retailer 18
-
$8,808 NZD
$4,956 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$9,572 NZD
ZAR 87,004 ZAR
View
B
Retailer 20
-
$12,403 NZD
£5,495 GBP
View
Most Expensive
NZ Jewellers
edb8209f-f13d-4790-8314-98fb76eb4070 · Sep 28
$13,566 NZD
$7,633 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $6,087 NZDSave up to $6,316 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
1.20ct Round
$6,087 NZD