Heart|Natural|GIA

0.91ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6183940304

Certificate GIA 6183940304

Diamond specifications and retailer prices

From $2,517 USD
€2,397 EUR
As of October 29, 2026
Save $2,305 USD (48%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,822 USD 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 H 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 6183940304. Listed at 6 retailers as of October 29, 2026, with prices from $2,517 to $4,822, a $2,305 spread on the same certified stone. MOH London lists it at $4,822. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6183940304
Dimensions5.43 × 5.95 × 3.24 mm
L/W Ratio1.10
Top View
5.43 mm5.95 mm0.91 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6183940304
Side View
Table 61.0%CrownGirdle: Extremely ThickPavilionCulet: ELGDepth 54.5%

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: Oct 29
Current: $4,822 USD|Low: $2,737 USD|High: $4,879 USD|Avg: $3,306 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$2,737 USD
Retailer 5$2,893 USD
Retailer 2$2,942 USD
Retailer 4$3,083 USD
Retailer 3$3,215 USD
Retailer 6$3,480 USD
MOH London$4,822 USD

42 data points across 7 retailers

6 retailers$2,517 USD to $4,822 USD

B
Cheapest Retailer
-
$2,517 USD
€2,397 EUR
B
Retailer 2
-
$2,893 USD
View
B
Retailer 3
-
$2,942 USD
£2,316 GBP
View
Retailer 4
-
$3,083 USD
A$4,744 AUD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$3,215 USD
€3,062 EUR
View
Most Expensive
B
MOH London
E023EEE7B · Nov 1
$4,822 USD
£3,797 GBP
View
5 more retailers have this diamond
Prices start from $2,517 USDSave up to $2,305 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.

B
0.91ct Heart
$2,517 USD