Round|Natural|IGI

0.81ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 679508365

Certificate IGI 679508365

Diamond specifications and retailer prices

From $535 USD
£421 GBP
Save $682 USD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,217 USD at MOH London
View at MOH London

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 679508365. Listed at 9 retailers, with prices from $535 to $1,217 at MOH London, a $682 spread on the same certified stone. 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

0.81
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 679508365
Dimensions5.83 × 5.76 × 3.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
5.83 mm5.76 mm0.81 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 679508365
Side View
Table 57.0%Crown 37°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $1,217 USD|Low: $524 USD|High: $1,217 USD|Avg: $688 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 1, 2026
Retailer 5$534 USD
Retailer 8$593 USD
Retailer 2$662 USD
Retailer 6$664 USD
Retailer 7$686 USD
Retailer 4$706 USD
Retailer 3$730 USD
Retailer 9$770 USD
MOH London$1,217 USD

41 data points across 9 retailers

9 retailers$535 USD to $1,217 USD

A
Cheapest Retailer
-
$535 USD
£421 GBP
A
Retailer 2
-
$593 USD
€565 EUR
View
Our latest check could not confirm this price
B+
Retailer 3
-
$662 USD
£521 GBP
View
A
Retailer 4
-
$664 USD
View
B+
Retailer 5
-
$686 USD
View
A
Retailer 6
-
$706 USD
€672 EUR
View
B+
Retailer 7
-
$730 USD
View
B+
Retailer 8
-
$770 USD
ZAR 12,440 ZAR
View
Price last confirmed 8 days ago
Most Expensive
B+
MOH London
17F1A43D5 · Oct 1
$1,217 USD
£958 GBP
View
8 more retailers have this diamond
Prices start from $535 USDSave up to $682 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.

A
0.81ct Round
$535 USD