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Radiant|Natural|GIA

3.97ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 221

Certificate GIA 221

Diamond specifications and retailer prices

From $77,002 SGD
$60,078 USD
As of October 29, 2026
Save $15,994 SGD (17%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $92,996 SGD at The Perfect Carat · As of October 29, 2026
View at The Perfect Carat

About this 3.97ct natural radiant diamond

This 3.97ct natural radiant sits in the three to five carat band, graded E 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. Listed at 5 retailers as of October 29, 2026, with prices from $77,002 to $92,996, a $15,994 spread on the same certified stone. The Perfect Carat lists it at $92,996. 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

3.97
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 221
Dimensions10.30 × 7.91 × 5.42 mm
L/W Ratio1.30
Top View
10.30 mm7.91 mm3.97 ctE / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 221
Side View
Table 66.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 68.6%

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: Oct 29
Current: $89,277 SGD|Low: $76,238 SGD|High: $100,437 SGD|Avg: $88,264 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
The Perfect Carat
October 16, 2026
Retailer 2$77,002 SGD
Retailer 6$80,579 SGD
Retailer 5$88,808 SGD
Retailer 1$89,277 SGD
Retailer 3$92,996 SGD
The Perfect Carat$92,996 SGD
Retailer 4$100,437 SGD

4 data points across 7 retailers

5 retailers$77,002 SGD to $92,996 SGD

B+
Cheapest Retailer
-
$77,002 SGD
$60,078 USD
B+
Retailer 2
-
$80,579 SGD
$62,869 USD
View
B
Retailer 3
-
$88,808 SGD
$69,289 USD
View
Retailer 4
-
$89,277 SGD
$69,655 USD
View
Price last confirmed 14 days ago
Most Expensive
B
The Perfect Carat
tpc_c83773c5-42fa-4bc9-821a-ba82f937f9e7 · Oct 29
$92,996 SGD
$72,557 USD
View
4 more retailers have this diamond
Prices start from $77,002 SGDSave up to $15,994 SGD

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+
3.97ct Radiant
$77,002 SGD