Radiant|Natural|GIA

1.81ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 6223818491

Certificate GIA 6223818491

Diamond specifications and retailer prices

From $5,815 USD
As of October 28, 2026
Save $4,496 USD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,311 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct natural radiant diamond

This 1.81ct natural radiant sits in the one-and-a-half to two carat band, graded G 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 6223818491. Listed at 14 retailers as of October 28, 2026, with prices from $5,815 to $10,311, a $4,496 spread on the same certified stone. MOH London lists it at $10,311. 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

1.81
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.7°
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 6223818491
Dimensions6.63 × 6.55 × 4.43 mm
L/W Ratio1.01
Top View
6.63 mm6.55 mm1.81 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6223818491
Side View
Table 64.0%Crown 39.7°Girdle: ThickPavilion 39.1°Culet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $10,311 USD|Low: $5,815 USD|High: $11,458 USD|Avg: $7,591 USD|-9.0%
MOH London
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 14$5,815 USD
Retailer 4$6,154 USD
Retailer 9$6,155 USD
Retailer 13$6,185 USD
Retailer 12$6,561 USD
Retailer 2$6,908 USD
Retailer 10$7,143 USD
Retailer 3$7,341 USD
Retailer 5$7,370 USD
Retailer 6$7,370 USD
Retailer 7$7,589 USD
Retailer 11$7,620 USD
Retailer 8$8,962 USD
MOH London$10,311 USD

43 data points across 14 retailers

14 retailers$5,815 USD to $10,311 USD

A
Cheapest Retailer
-
$5,815 USD
A
Retailer 2
-
$6,154 USD
View
Final sale: no returns
A
Retailer 3
-
$6,155 USD
View
A
Retailer 4
-
$6,185 USD
View
A
Retailer 5
-
$6,561 USD
View
A
Retailer 6
-
$6,908 USD
£5,439 GBP
View
A
Retailer 7
-
$7,143 USD
A$10,990 AUD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$7,341 USD
View
A
Retailer 9
-
$7,370 USD
View
A
Retailer 10
-
$7,370 USD
View
A
Retailer 11
-
$7,589 USD
£5,976 GBP
View
A
Retailer 12
-
$7,620 USD
View
B+
Retailer 13
-
$8,962 USD
ZAR 144,782 ZAR
View
Most Expensive
B+
MOH London
D052638C8 · Oct 29
$10,311 USD
£8,119 GBP
View
13 more retailers have this diamond
Prices start from $5,815 USDSave up to $4,496 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
1.81ct Radiant
$5,815 USD