Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2547966412

Certificate GIA 2547966412

Diamond specifications and retailer prices

From $6,122 NZD
As of November 5, 2026
Save $263 NZD (4%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $12,120 NZD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547966412. Listed at 23 retailers as of November 5, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2547966412
Dimensions6.80 × 6.83 × 4.20 mm
L/W Ratio1.00
Top View
6.80 mm6.83 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547966412
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 5
Current: $6,122 NZD|Low: $3,896 NZD|High: $11,947 NZD|Avg: $7,354 NZD|+0.2%
Retailer 1
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
November 5, 2026
Retailer 3$3,896 NZD
Retailer 13$5,473 NZD
Retailer 1$6,122 NZD
Retailer 5$6,211 NZD
Retailer 4$6,355 NZD
Retailer 16$6,584 NZD
Retailer 10$6,633 NZD
Retailer 11$6,913 NZD
Retailer 6$7,149 NZD
Retailer 7$7,374 NZD
Retailer 8$7,423 NZD
Retailer 2$7,937 NZD
Retailer 12$8,026 NZD
Retailer 9$8,385 NZD
Retailer 14$11,532 NZD
Retailer 15$11,855 NZD

27 data points across 16 retailers

23 retailers$6,122 NZD to $6,386 NZD

Retailer 1
-
$3,896 NZD
Price last confirmed 24 days ago
Retailer 2
-
$5,195 NZD
View
Price last confirmed 13 days ago
Retailer 3
-
$5,473 NZD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$6,122 NZD
View
Retailer 5
-
$6,211 NZD
View
Price last confirmed 12 days ago
Retailer 6
-
$6,220 NZD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$6,386 NZD
View
Retailer 8
-
$6,584 NZD
View
Price last confirmed 11 days ago
Retailer 9
-
$6,617 NZD
View
Price last confirmed 13 days ago
Retailer 10
-
$6,885 NZD
View
Price last confirmed 28 days ago
Retailer 11
-
$6,885 NZD
View
Price last confirmed 26 days ago
Retailer 12
-
$6,913 NZD
View
Price last confirmed 12 days ago
Retailer 13
-
$6,958 NZD
View
Price last confirmed 40 days ago
Retailer 14
-
$7,149 NZD
View
Price last confirmed 13 days ago
Retailer 15
-
$7,374 NZD
View
Price last confirmed 30 days ago
Retailer 16
-
$7,423 NZD
View
Price last confirmed 13 days ago
Retailer 17
-
$7,937 NZD
View
Price last confirmed 13 days ago
Retailer 18
-
$8,026 NZD
View
Price last confirmed 13 days ago
Retailer 19
-
$8,027 NZD
View
Price last confirmed 40 days ago
Retailer 20
-
$8,385 NZD
View
Price last confirmed 11 days ago
Retailer 21
-
$11,532 NZD
View
Price last confirmed 12 days ago
Retailer 22
-
$11,855 NZD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
ca5f900b-11a3-46c8-85ef-62cf814c45aa · Sep 25
$12,120 NZD
$6,719 USD
View
Price last confirmed 42 days ago
22 more retailers have this diamond
Prices start from $6,122 NZDSave up to $263 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+
1.20ct Round
$6,122 NZD