Radiant|Natural|GIA

6.09ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2239155191

Certificate GIA 2239155191

Diamond specifications and retailer prices

From $272,030 NZD
$153,317 USD
As of November 2, 2026
Save $63,160 NZD (19%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $335,191 NZD at 77 Diamonds · As of October 29, 2026
View at 77 Diamonds

About this 6.09ct natural radiant diamond

This 6.09ct natural radiant sits in the over five carat band, graded H 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 2239155191. Listed at 7 retailers as of October 29, 2026, with prices from $272,030 to $335,191, a $63,160 spread on the same certified stone. 77 Diamonds lists it at $335,191. 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

6.09
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2239155191
Dimensions12.50 × 9.17 × 6.37 mm
L/W Ratio1.36
Top View
12.50 mm9.17 mm6.09 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2239155191
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $335,191 NZD|Low: $269,474 NZD|High: $335,191 NZD|Avg: $297,720 NZD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$272,030 NZD
Retailer 2$284,208 NZD
Retailer 3$300,258 NZD
77 Diamonds$335,191 NZD

37 data points across 4 retailers

7 retailers$272,030 NZD to $335,191 NZD

B+
Cheapest Retailer
-
$272,030 NZD
$153,317 USD
B
Retailer 2
-
$274,851 NZD
$154,907 USD
View
B+
Retailer 3
-
$284,208 NZD
₹15,255,251 INR
View
B
Retailer 4
-
$290,036 NZD
$163,465 USD
View
B
Retailer 5
-
$300,258 NZD
$169,226 USD
View
Retailer 6
-
$300,258 NZD
$169,226 USD
View
Price last confirmed 17 days ago
Most Expensive
B
77 Diamonds
RADZXCHXKKPW · Oct 29
$335,191 NZD
£148,751 GBP
View
6 more retailers have this diamond
Prices start from $272,030 NZDSave up to $63,160 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.

B+
6.09ct Radiant
$272,030 NZD