CaratHunter
Plans
Radiant|Natural|GIA

1.81ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 6223818491

Certificate GIA 6223818491

Diamond specifications and retailer prices

From $10,318 NZD
$5,815 USD
As of November 1, 2026
Save $7,881 NZD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,198 NZD at MOH London · As of November 1, 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 November 1, 2026, with prices from $10,318 to $18,198, a $7,881 spread on the same certified stone. MOH London lists it at $18,198. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,198 NZD|Low: $10,318 NZD|High: $20,330 NZD|Avg: $13,471 NZD|-9.5%
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
November 2, 2026
Retailer 14$10,318 NZD
Retailer 4$10,919 NZD
Retailer 9$10,921 NZD
Retailer 13$10,974 NZD
Retailer 12$11,642 NZD
Retailer 2$12,313 NZD
Retailer 10$12,674 NZD
Retailer 3$13,024 NZD
Retailer 5$13,077 NZD
Retailer 6$13,077 NZD
Retailer 8$13,465 NZD
Retailer 11$13,520 NZD
Retailer 7$16,044 NZD
MOH London$18,198 NZD

44 data points across 14 retailers

14 retailers$10,318 NZD to $18,198 NZD

A
Cheapest Retailer
-
$10,318 NZD
$5,815 USD
A
Retailer 2
-
$10,919 NZD
$6,154 USD
View
Final sale: no returns
A
Retailer 3
-
$10,921 NZD
$6,155 USD
View
A
Retailer 4
-
$10,974 NZD
$6,185 USD
View
A
Retailer 5
-
$11,642 NZD
$6,561 USD
View
A
Retailer 6
-
$12,313 NZD
£5,464 GBP
View
Retailer 7
-
$12,674 NZD
A$10,990 AUD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$13,024 NZD
$7,341 USD
View
A
Retailer 9
-
$13,077 NZD
$7,370 USD
View
A
Retailer 10
-
$13,077 NZD
$7,370 USD
View
A
Retailer 11
-
$13,465 NZD
£5,976 GBP
View
A
Retailer 12
-
$13,520 NZD
$7,620 USD
View
B+
Retailer 13
-
$16,044 NZD
ZAR 146,080 ZAR
View
Most Expensive
B+
MOH London
D052638C8 · Nov 1
$18,198 NZD
£8,076 GBP
View
13 more retailers have this diamond
Prices start from $10,318 NZDSave up to $7,881 NZD

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
$10,318 NZD