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Round|Natural|GIA

1.15ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2554183445

Certificate GIA 2554183445

Diamond specifications and retailer prices

From $3,285 NZD
£1,458 GBP
As of November 2, 2026
Save $2,866 NZD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,696 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.15ct natural round diamond

This 1.15ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554183445. Listed at 8 retailers as of November 1, 2026, with a 87% 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

1.15
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554183445
Dimensions6.63 × 6.67 × 4.16 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Needle
Top View
6.63 mm6.67 mm1.15 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2554183445
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°CuletDepth 62.6%

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 2
Current: $3,285 NZD|Low: $3,246 NZD|High: $6,321 NZD|Avg: $4,232 NZD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 1$3,285 NZD
Retailer 2$3,348 NZD
Retailer 4$3,797 NZD
Retailer 3$6,152 NZD

40 data points across 4 retailers

8 retailers$3,285 NZD to $6,152 NZD

A
Cheapest Retailer
-
$3,285 NZD
£1,458 GBP
A
Retailer 2
-
$3,348 NZD
£1,486 GBP
View
Retailer 3
-
$3,549 NZD
$2,000 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$3,565 NZD
$2,009 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$3,712 NZD
$2,092 USD
View
Price last confirmed 33 days ago
B
Retailer 6
-
$6,152 NZD
£2,730 GBP
View
Retailer 7
-
$8,653 NZD
$4,877 USD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
0d698dd1-0694-4dfb-b3ae-02de4cea1634 · Sep 28
$8,696 NZD
$4,901 USD
View
Price last confirmed 35 days ago
7 more retailers have this diamond
Prices start from $3,285 NZDSave up to $2,866 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
1.15ct Round
$3,285 NZD