Radiant|Natural|GIA

3.21ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 1555690021

Certificate GIA 1555690021

Diamond specifications and retailer prices

From €39,338 EUR
HK$344,700 HKD
As of November 1, 2026
Save €33,721 EUR (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €73,059 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 3.21ct natural radiant diamond

This 3.21ct natural radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555690021. Listed at 22 retailers as of November 1, 2026, with prices from €39,338 to €73,059, a €33,721 spread on the same certified stone. MOH London lists it at €73,059. 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

3.21
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.85°
Pavilion angle51.88°
OriginNatural
Grading LabGIA
CertificateGIA 1555690021
Dimensions10.71 × 7.39 × 4.70 mm
L/W Ratio1.45
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
10.71 mm7.39 mm3.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555690021
Side View
Table 67.0%Crown 50.85°Girdle: ThickPavilion 51.88°Culet: NoneDepth 63.7%

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: €73,059 EUR|Low: €39,338 EUR|High: €74,320 EUR|Avg: €49,959 EUR|-1.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 6€39,338 EUR
Retailer 14€41,157 EUR
Retailer 19€42,816 EUR
Retailer 20€42,881 EUR
Retailer 7€43,928 EUR
Retailer 11€44,412 EUR
Retailer 5€44,953 EUR
Retailer 9€46,465 EUR
Retailer 3€48,728 EUR
Retailer 18€48,728 EUR
Retailer 8€50,316 EUR
Retailer 21€50,677 EUR
Retailer 16€50,686 EUR
Retailer 17€50,686 EUR
Retailer 15€52,371 EUR
Retailer 10€52,495 EUR
Retailer 4€52,627 EUR
Retailer 12€54,306 EUR
Retailer 13€56,759 EUR
Retailer 2€61,248 EUR
MOH London€73,059 EUR

34 data points across 21 retailers

22 retailers€39,338 EUR to €73,059 EUR

A
Cheapest Retailer
-
€39,338 EUR
HK$344,700 HKD
A
Retailer 2
-
€41,157 EUR
$46,162 USD
View
B+
Retailer 3
-
€42,816 EUR
$48,023 USD
View
B+
Retailer 4
-
€42,881 EUR
$48,096 USD
View
Final sale: no returns
B+
Retailer 5
-
€43,928 EUR
$49,270 USD
View
B+
Retailer 6
-
€44,412 EUR
SGD 67,315 SGD
View
B+
Retailer 7
-
€44,953 EUR
$50,420 USD
View
B+
Retailer 8
-
€46,465 EUR
$52,115 USD
View
B+
Retailer 9
-
€48,728 EUR
$54,654 USD
View
B+
Retailer 10
-
€48,728 EUR
$54,654 USD
View
B+
Retailer 11
-
€50,316 EUR
$56,435 USD
View
B+
Retailer 12
-
€50,677 EUR
$56,840 USD
View
B
Retailer 13
-
€50,686 EUR
$56,850 USD
View
B
Retailer 14
-
€50,686 EUR
$56,850 USD
View
B
Retailer 15
-
€52,371 EUR
$58,740 USD
View
Retailer 16
-
€52,495 EUR
$58,879 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
€52,627 EUR
$59,027 USD
View
Retailer 18
-
€53,440 EUR
$59,939 USD
View
Price last confirmed 62 days ago
B+
Retailer 19
-
€54,306 EUR
$60,910 USD
View
B+
Retailer 20
-
€56,759 EUR
View
B
Retailer 21
-
€61,248 EUR
£54,092 GBP
View
Most Expensive
B
MOH London
EE3EA3935 · Nov 1
€73,059 EUR
£64,522 GBP
View
21 more retailers have this diamond
Prices start from €39,338 EURSave up to €33,721 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.

A
3.21ct Radiant
€39,338 EUR