Round|Natural|GIA

0.81ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6552400407

Certificate GIA 6552400407

Diamond specifications and retailer prices

From $1,079 USD
As of November 1, 2026
Save $1,668 USD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,747 USD at NZ Jewellers · As of October 30, 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 6552400407. Listed at 15 retailers as of October 30, 2026, with prices from $1,079 to $2,747, a $1,668 spread on the same certified stone. NZ Jewellers lists it at $2,747. 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
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6552400407
Dimensions5.90 × 5.94 × 3.72 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud
Top View
5.90 mm5.94 mm0.81 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552400407
Side View
Table 58.0%Crown 35°Girdle: MED-SLIPavilion 41.4°Culet: NoneDepth 62.9%

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: $2,747 USD|Low: $1,068 USD|High: $2,747 USD|Avg: $1,492 USD|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 13$1,079 USD
Retailer 10$1,080 USD
Retailer 3$1,126 USD
Retailer 12$1,126 USD
Retailer 6$1,277 USD
Retailer 4$1,300 USD
Retailer 11$1,334 USD
Retailer 2$1,420 USD
Retailer 5$1,458 USD
Retailer 7$1,571 USD
Retailer 9$1,666 USD
Retailer 8$2,062 USD
NZ Jewellers$2,747 USD

34 data points across 13 retailers

15 retailers$1,079 USD to $2,747 USD

A
Cheapest Retailer
-
$1,079 USD
A
Retailer 2
-
$1,080 USD
View
Retailer 3
-
$1,080 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
$1,126 USD
View
A
Retailer 5
-
$1,126 USD
View
A
Retailer 6
-
$1,170 USD
View
A
Retailer 7
-
$1,277 USD
£1,005 GBP
View
A
Retailer 8
-
$1,300 USD
View
A
Retailer 9
-
$1,334 USD
£1,050 GBP
View
A
Retailer 10
-
$1,420 USD
£1,118 GBP
View
Retailer 11
-
$1,458 USD
A$2,243 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$1,571 USD
€1,496 EUR
View
B+
Retailer 13
-
$1,666 USD
ZAR 26,913 ZAR
View
B+
Retailer 14
-
$2,062 USD
£1,624 GBP
View
Most Expensive
B
NZ Jewellers
a8059c2e-eda3-4644-a80a-cce512508ee5 · Oct 30
$2,747 USD
View
14 more retailers have this diamond
Prices start from $1,079 USDSave up to $1,668 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
$1,079 USD