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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2556551330

Certificate GIA 2556551330

Diamond specifications and retailer prices

From $1,896 NZD
As of November 6, 2026
Save $1,100 NZD (37%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,136 NZD at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556551330. Listed at 10 retailers as of November 4, 2026, with a 58% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556551330
Dimensions6.50 × 5.87 × 3.82 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Indented Natural
Top View
6.50 mm5.87 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556551330
Side View
Table 58.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 58.7%

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: $2,293 NZD|Low: $1,638 NZD|High: $3,034 NZD|Avg: $2,187 NZD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$1,638 NZD
Retailer 2$1,896 NZD
Retailer 5$1,921 NZD
Retailer 1$2,293 NZD
Retailer 3$2,397 NZD
Retailer 4$2,996 NZD

44 data points across 6 retailers

10 retailers$1,896 NZD to $2,996 NZD

Retailer 1
-
$1,638 NZD
Price last confirmed 37 days ago
Retailer 2
-
$1,638 NZD
View
Price last confirmed 30 days ago
Retailer 3
-
$1,701 NZD
View
Price last confirmed 37 days ago
Retailer 4
-
$1,889 NZD
View
Price last confirmed 39 days ago
B+
Retailer 5
-
$1,896 NZD
View
B+
Retailer 6
-
$1,921 NZD
View
B+
Retailer 7
-
$2,293 NZD
View
B+
Retailer 8
-
$2,397 NZD
View
B
Retailer 9
-
$2,996 NZD
View
Most Expensive
NZ Jewellers
87bcb237-9209-4761-a008-a29bb5d50812 · Sep 30
$5,136 NZD
$2,847 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $1,896 NZDSave up to $1,100 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+
0.90ct Heart
$1,896 NZD