Radiant|Natural|GIA

6.09ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2239155191

Certificate GIA 2239155191

Diamond specifications and retailer prices

From €136,694 EUR
$153,317 USD
As of November 2, 2026
Save €31,738 EUR (19%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €168,432 EUR 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 €136,694 to €168,432, a €31,738 spread on the same certified stone. 77 Diamonds lists it at €168,432. 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: €168,432 EUR|Low: €135,410 EUR|High: €168,432 EUR|Avg: €149,603 EUR|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4€136,694 EUR
Retailer 3€142,813 EUR
Retailer 2€150,879 EUR
77 Diamonds€168,432 EUR

37 data points across 4 retailers

7 retailers€136,694 EUR to €168,432 EUR

B+
Cheapest Retailer
-
€136,694 EUR
$153,317 USD
B
Retailer 2
-
€138,112 EUR
$154,907 USD
View
B+
Retailer 3
-
€142,813 EUR
₹15,255,251 INR
View
B
Retailer 4
-
€145,742 EUR
$163,465 USD
View
B
Retailer 5
-
€150,879 EUR
$169,226 USD
View
Retailer 6
-
€150,879 EUR
$169,226 USD
View
Price last confirmed 17 days ago
Most Expensive
B
77 Diamonds
RADZXCHXKKPW · Oct 29
€168,432 EUR
£148,751 GBP
View
6 more retailers have this diamond
Prices start from €136,694 EURSave up to €31,738 EUR

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
€136,694 EUR