Round|Natural|GIA

0.81ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566286977

Certificate GIA 2566286977

Diamond specifications and retailer prices

From $1,037 USD
HK$8,100 HKD
As of October 30, 2026
Save $1,529 USD (60%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,424 USD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566286977. Listed at 19 retailers as of October 29, 2026, with a 147% 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

0.81
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566286977
Dimensions5.93 × 5.96 × 3.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.93 mm5.96 mm0.81 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566286977
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: Oct 30
Current: $1,554 USD|Low: $1,037 USD|High: $2,602 USD|Avg: $1,586 USD|+1.4%
Retailer 1
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
October 29, 2026
Retailer 13$1,037 USD
Retailer 10$1,051 USD
Retailer 12$1,223 USD
Retailer 14$1,235 USD
Retailer 3$1,276 USD
Retailer 5$1,285 USD
Retailer 4$1,452 USD
Retailer 1$1,554 USD
Retailer 11$1,607 USD
Retailer 2$1,651 USD
Retailer 7$1,766 USD
Retailer 9$1,823 USD
Retailer 6$2,005 USD
Retailer 8$2,565 USD

30 data points across 14 retailers

19 retailers$1,037 USD to $2,565 USD

A
Cheapest Retailer
-
$1,037 USD
HK$8,100 HKD
A
Retailer 2
-
$1,051 USD
₹100,061 INR
View
Retailer 3
-
$1,223 USD
€1,165 EUR
View
Price last confirmed 6 days ago
Retailer 4
-
$1,235 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$1,276 USD
SGD 1,724 SGD
View
A
Retailer 6
-
$1,285 USD
View
Final sale: no returns
A
Retailer 7
-
$1,311 USD
View
A
Retailer 8
-
$1,314 USD
View
Retailer 9
-
$1,324 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$1,404 USD
View
Price last confirmed 34 days ago
Retailer 11
-
$1,452 USD
SGD 1,962 SGD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$1,554 USD
£1,224 GBP
View
B+
Retailer 13
-
$1,607 USD
View
B+
Retailer 14
-
$1,651 USD
£1,300 GBP
View
B+
Retailer 15
-
$1,766 USD
£1,391 GBP
View
B+
Retailer 16
-
$1,823 USD
€1,736 EUR
View
B+
Retailer 17
-
$2,005 USD
View
B
Retailer 18
-
$2,565 USD
£2,020 GBP
View
Most Expensive
NZ Jewellers
1c892efb-6e1d-4457-a0dc-4536c51c2335 · Sep 26
$3,424 USD
View
Price last confirmed 36 days ago
18 more retailers have this diamond
Prices start from $1,037 USDSave up to $1,529 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
0.81ct Round
$1,037 USD