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Heart|Natural|GIA

0.90ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 1553551358

Certificate GIA 1553551358

Diamond specifications and retailer prices

From $2,001 NZD
$1,126 USD
As of November 1, 2026
Save $3,308 NZD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,667 NZD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-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 1553551358. Listed at 15 retailers as of November 1, 2026, with a 165% 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

0.90
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553551358
Dimensions6.79 × 5.77 × 4.03 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Cavity, Needle, Indented Natural
Top View
6.79 mm5.77 mm0.90 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553551358
Side View
Table 64.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 59.3%

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: $6,667 NZD|Low: $1,905 NZD|High: $6,667 NZD|Avg: $3,344 NZD
NZ Jewellers
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 2, 2026
Retailer 6$2,001 NZD
Retailer 5$2,195 NZD
Retailer 3$2,286 NZD
Retailer 7$2,364 NZD
Retailer 4$2,476 NZD
Retailer 16$2,476 NZD
Retailer 15$2,856 NZD
Retailer 12$2,968 NZD
Retailer 13$2,968 NZD
Retailer 14$3,075 NZD
Retailer 8$3,399 NZD
Retailer 9$3,766 NZD
Retailer 11$4,070 NZD
Retailer 10$4,835 NZD
Retailer 2$5,309 NZD
NZ Jewellers$6,667 NZD

35 data points across 16 retailers

15 retailers$2,001 NZD to $5,309 NZD

A
Cheapest Retailer
-
$2,001 NZD
$1,126 USD
A
Retailer 2
-
$2,195 NZD
$1,235 USD
View
B+
Retailer 3
-
$2,364 NZD
$1,330 USD
View
Retailer 4
-
$2,476 NZD
$1,393 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$2,590 NZD
$1,457 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$2,856 NZD
$1,607 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$2,968 NZD
$1,670 USD
View
B+
Retailer 8
-
$2,968 NZD
$1,670 USD
View
B
Retailer 9
-
$3,075 NZD
$1,730 USD
View
B+
Retailer 10
-
$3,399 NZD
$1,912 USD
View
B
Retailer 11
-
$3,766 NZD
€2,018 EUR
View
B
Retailer 12
-
$4,070 NZD
ZAR 36,992 ZAR
View
B
Retailer 13
-
$4,835 NZD
£2,142 GBP
View
B
Retailer 14
-
$5,309 NZD
£2,352 GBP
View
Most Expensive
NZ Jewellers
9d6be2f3-980b-4fc7-bfbf-4f350b0fe006 · Oct 21
$6,667 NZD
$3,751 USD
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from $2,001 NZDSave up to $3,308 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
0.90ct Heart
$2,001 NZD