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Heart|Natural|GIA

1.22ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2156178897

Certificate GIA 2156178897

Diamond specifications and retailer prices

From $6,178 NZD
As of November 6, 2026
Save $2,949 NZD (32%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $9,127 NZD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.22ct natural heart diamond

This 1.22ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2156178897. Listed at 5 retailers as of November 6, 2026, with prices from $6,178 to $9,127, a $2,949 spread on the same certified stone. 77 Diamonds lists it at $9,127. 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

1.22
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2156178897
Dimensions6.54 × 7.44 × 4.30 mm
L/W Ratio1.14
Top View
6.54 mm7.44 mm1.22 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2156178897
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 57.8%

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 6
Current: $9,127 NZD|Low: $6,178 NZD|High: $9,252 NZD|Avg: $7,763 NZD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 3$6,178 NZD
Retailer 2$7,923 NZD
77 Diamonds$9,127 NZD

33 data points across 3 retailers

5 retailers$6,178 NZD to $9,127 NZD

B+
Cheapest Retailer
-
$6,178 NZD
B+
Retailer 2
-
$6,178 NZD
View
B
Retailer 3
-
$7,923 NZD
View
Retailer 4
-
$7,923 NZD
View
Price last confirmed 8 days ago
Most Expensive
B
77 Diamonds
HSZPKJE5AEZ · Nov 7
$9,127 NZD
£3,984 GBP
View
4 more retailers have this diamond
Prices start from $6,178 NZDSave up to $2,949 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+
1.22ct Heart
$6,178 NZD