Radiant|Natural|GIA

6.09ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2239155191

Certificate GIA 2239155191

Diamond specifications and retailer prices

From $153,317 USD
As of November 2, 2026
Save $35,597 USD (19%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $188,914 USD 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 $153,317 to $188,914, a $35,597 spread on the same certified stone. 77 Diamonds lists it at $188,914. 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
Color
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
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Price History

Last verified: Nov 2
Current: $188,914 USD|Low: $151,876 USD|High: $188,914 USD|Avg: $167,796 USD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$153,317 USD
Retailer 2$160,180 USD
Retailer 3$169,226 USD
77 Diamonds$188,914 USD

37 data points across 4 retailers

7 retailers$153,317 USD to $188,914 USD

B+
Cheapest Retailer
-
$153,317 USD
B
Retailer 2
-
$154,907 USD
View
B+
Retailer 3
-
$160,180 USD
₹15,255,251 INR
View
B
Retailer 4
-
$163,465 USD
View
B
Retailer 5
-
$169,226 USD
View
Retailer 6
-
$169,226 USD
View
Price last confirmed 17 days ago
Most Expensive
B
77 Diamonds
RADZXCHXKKPW · Oct 29
$188,914 USD
£148,751 GBP
View
6 more retailers have this diamond
Prices start from $153,317 USDSave up to $35,597 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.

B+
6.09ct Radiant
$153,317 USD