Heart|Natural|GIA

0.91ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6552104987

Certificate GIA 6552104987

Diamond specifications and retailer prices

From $1,331 USD
HK$10,400 HKD
As of November 1, 2026
Save $1,719 USD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,622 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552104987. Listed at 14 retailers as of November 1, 2026, with a 129% 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

0.91
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552104987
Dimensions5.85 × 6.95 × 4.15 mm
L/W Ratio1.19
Top View
5.85 mm6.95 mm0.91 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552104987
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.7%

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: $1,750 USD|Low: $1,331 USD|High: $3,359 USD|Avg: $2,033 USD|-13.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$1,331 USD
Retailer 8$1,596 USD
Retailer 9$1,607 USD
Retailer 5$1,639 USD
Retailer 12$1,670 USD
Retailer 11$1,675 USD
Retailer 1$1,750 USD
Retailer 3$1,897 USD
Retailer 4$2,334 USD
Retailer 10$2,620 USD
Retailer 2$2,723 USD
Retailer 7$3,051 USD

33 data points across 12 retailers

14 retailers$1,331 USD to $3,051 USD

A
Cheapest Retailer
-
$1,331 USD
HK$10,400 HKD
B+
Retailer 2
-
$1,596 USD
€1,520 EUR
View
B+
Retailer 3
-
$1,607 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,639 USD
View
B+
Retailer 5
-
$1,670 USD
View
B+
Retailer 6
-
$1,675 USD
View
B+
Retailer 7
-
$1,750 USD
£1,378 GBP
View
Retailer 8
-
$1,897 USD
SGD 2,563 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$2,326 USD
A$3,578 AUD
View
Retailer 10
-
$2,334 USD
A$3,591 AUD
View
Price last confirmed 27 days ago
B
Retailer 11
-
$2,620 USD
ZAR 42,330 ZAR
View
Retailer 12
-
$2,723 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$3,051 USD
£2,402 GBP
View
Most Expensive
NZ Jewellers
c224f74d-1ba1-4f62-9662-db742b6e8049 · Sep 25
$4,622 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $1,331 USDSave up to $1,719 USD

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
0.91ct Heart
$1,331 USD