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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 2225433751

Certificate GIA 2225433751

Diamond specifications and retailer prices

From $5,337 SGD
$4,173 USD
As of November 1, 2026
Save $1,803 SGD (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,879 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2225433751. Listed at 9 retailers as of November 1, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle33.8°
Pavilion angle42°
OriginNatural
Grading LabGIA
CertificateGIA 2225433751
Dimensions5.77 × 6.83 × 3.85 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.77 mm6.83 mm0.91 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2225433751
Side View
Table 60.0%Crown 33.8°Girdle: THN-VTKPavilion 42°Culet: NoneDepth 56.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $10,879 SGD|Low: $4,760 SGD|High: $11,423 SGD|Avg: $7,393 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 3$5,337 SGD
Retailer 4$5,712 SGD
Retailer 5$6,187 SGD
Retailer 7$6,187 SGD
Retailer 9$6,187 SGD
Retailer 2$6,729 SGD
Retailer 8$7,140 SGD
Retailer 10$7,529 SGD
MOH London$10,879 SGD
Retailer 6$11,423 SGD

41 data points across 10 retailers

9 retailers$5,337 SGD to $7,140 SGD

B
Cheapest Retailer
-
$5,337 SGD
$4,173 USD
B
Retailer 2
-
$5,712 SGD
$4,466 USD
View
Final sale: no returns
B
Retailer 3
-
$6,187 SGD
$4,838 USD
View
B
Retailer 4
-
$6,187 SGD
$4,838 USD
View
B
Retailer 5
-
$6,729 SGD
£4,143 GBP
View
B
Retailer 6
-
$7,140 SGD
$5,583 USD
View
Retailer 7
-
$9,985 SGD
$7,808 USD
View
Price under review
Most Expensive
MOH London
98C9D2D50 · Nov 1
$10,879 SGD
£6,698 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $5,337 SGDSave up to $1,803 SGD

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
0.91ct Heart
$5,337 SGD